{"title":"Mystery Detective","description":"\u003cp\u003e\u003cstrong\u003eMystery Detective worksheets\u003c\/strong\u003e that mark themselves. In every Kiwiland Mystery Detective pack a case has to be solved, and the only way through it is the math: students work a page of problems, match each answer to a suspect, and cross suspects off until one is left. A wrong answer matches nobody, so students spot it and go back on their own. That is why teachers reach for these for \u003cstrong\u003esub plans, math centers, early finishers, homework and test prep\u003c\/strong\u003e. Nothing to mark, nothing to explain twice.\u003c\/p\u003e\n\u003cp\u003eThis collection holds \u003cstrong\u003e201 printable math detective packs\u003c\/strong\u003e from Grade 1 to high school: addition and subtraction, multiplication and division, place value, rounding, telling time, money, fractions, decimals, integers, order of operations, geometry, measurement, equations and factoring quadratics. Seasonal cases for Halloween, Christmas, back to school and end of year sit alongside the year-round skill packs, so there is a mystery for the week you are actually in.\u003c\/p\u003e\n\u003cp\u003eEvery pack is print-and-go: student pages, suspect line-up and a full answer key in one PDF. Kiwiland resources carry a 4.84-star rating across more than 10,000 teacher reviews on Teachers Pay Teachers.\u003c\/p\u003e\n\u003cp\u003eNew to the format? Read \u003ca href=\"\/blogs\/teaching-blog\/what-is-a-math-detective-activity\"\u003eWhat Is a Math Detective Activity?\u003c\/a\u003e for how they work and how to run one. Looking for the five-clue detective version? See \u003ca href=\"\/collections\/csi-mysteries\"\u003eCSI Mysteries\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"2-digit-addition-regrouping-mystery-detective-worksheets","title":"2-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 1–4 | Printable Detective Pack","description":"\u003cp\u003e2 digit addition with regrouping math activities for 1st grade and 2nd grade: five math cases, each a Mystery Detective page, carrying from the ones into the tens. Print and go with full answer keys: no prep math worksheets for morning work, math centers, early finishers, homework and sub plans. Two digit addition with regrouping for 1st grade and 2nd grade, set around school so it works in any month, and short enough for a young class to finish. It suits math centers, morning work and early finishers, and it prints and goes as five CSI Mini Mystery Detective cases.\u003c\/p\u003e\n\n\u003cp\u003eCarrying is the step a young class needs the most practice at, and a teacher who is nowhere in the school is what keeps them happily at it for five pages. Students match each total to a suspect and cross that name off, which means they are checking their own carrying as they go. One case fills a morning work slot, and every CSI Mini Mystery Detective math sheet marks itself.\u003c\/p\u003e\n\u003cp\u003eStudents add each pair of numbers, carrying from the ones to the tens, then look for the total in the clue lists. A neighbor's missing phone, a teacher who hasn't turned up and a mystery reward are three of the cases. A child who finishes with one clue in each list has got the carrying right.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Phone\u003c\/strong\u003e - a neighbor's phone has been taken\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Teachers Lunch\u003c\/strong\u003e - the teacher's lunch is gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Teacher\u003c\/strong\u003e - where a teacher has gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWho Got in Trouble\u003c\/strong\u003e - which student was in trouble\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Mystery Reward\u003c\/strong\u003e - who did the great work\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive cases of 2 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eClue lists down the side of each page\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAnswer keys\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case is one page with a short story, some addition problems and clue lists for who, where and when. Every clue has a number. When an answer matches, the clue gets crossed off, and the ones still standing at the end solve the case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese fit once carrying has been taught and your class is practicing on its own. 2nd graders can use them as review before 3 digit addition. Hand them out in a math center, send them home, or use them in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 1st grade and 2nd grade, once carrying has been introduced.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEvery problem needs regrouping\u003c\/li\u003e\n  \u003cli\u003eSchool stories kids recognize\u003c\/li\u003e\n  \u003cli\u003ePrint and go\u003c\/li\u003e\n  \u003cli\u003eStudents can see when a total doesn't match\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":51925536080242,"sku":"4912078","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/2-digit-addition-with-regrouping-worksheets-1st-2nd-grade-4912078.jpg?v=1792462230"},{"product_id":"mean-median-mode-range-mystery-detective-worksheets","title":"Mean, Median, Mode \u0026 Range | Mystery Detective Worksheets | Grades 5–8 | Data \u0026 Statistics","description":"\u003cp\u003eLooking for engaging and easy-to-use \u003cstrong\u003emean, median, mode, and range worksheets\u003c\/strong\u003e? These \u003cstrong\u003eData and Statistics Mini Mystery Detective packs of math activities\u003c\/strong\u003e are ideal for helping \u003cstrong\u003e5th, 6th, and 7th-grade students\u003c\/strong\u003e practice and apply their understanding of key statistical concepts. Designed to boost math engagement, these printable math puzzles combine \u003cstrong\u003ecritical thinking and problem-solving\u003c\/strong\u003e with essential skills like calculating \u003cstrong\u003emean, median, mode, and range\u003c\/strong\u003e using both 2-digit and 3-digit numbers.\u003c\/p\u003e\n\n\u003cp\u003eEach \u003cstrong\u003eMini Mystery Detective worksheet\u003c\/strong\u003e includes a fun, narrative-driven prompt to hook your students and a series of \u003cstrong\u003edata and statistics questions\u003c\/strong\u003e that guide them through solving a mystery. With each correct answer, students eliminate suspects and narrow down the solution - making math practice both purposeful and exciting. These activities are perfect for math review, test prep, early finishers, independent work, or a fun change of pace in your classroom.\u003c\/p\u003e\n\n\u003cp\u003eInside this pack, you'll find \u003cstrong\u003e5 ready-to-use Mystery Detective worksheets\u003c\/strong\u003e that focus on \u003cstrong\u003emean, median, mode, and range\u003c\/strong\u003e. Each mystery starts with a short scene-setting story to engage students. Then, students solve a sequence of math problems - each answer bringing them one step closer to cracking the case. It's a highly effective way to reinforce \u003cstrong\u003estatistical reasoning\u003c\/strong\u003e while keeping students motivated and focused.\u003c\/p\u003e\n\n\u003cp\u003eUnlike traditional escape room activities, these \u003cstrong\u003eMystery Detective puzzles\u003c\/strong\u003e don't require codes, locks, or prep. Instead, students rely on \u003cstrong\u003emath logic and deduction\u003c\/strong\u003e to identify clues, eliminate possibilities, and solve the mystery. These no-prep activities are perfect for reinforcing \u003cstrong\u003edata and statistics standards\u003c\/strong\u003e in a fun, meaningful, and independent format.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy, and please remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eKiwiland Education\u003c\/p\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":51950626046322,"sku":"13397540","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/mean-median-mode-range-worksheets-grade-6-13397540.jpg?v=1792461527"},{"product_id":"spring-order-of-operations-with-no-exponents-pemdas-mystery-detective","title":"Order of Operations (No Exponents \/ PEMDAS) | Mystery Detective Worksheets | Grades 5–8 | Spring","description":"\u003cp\u003eIf your students are learning to use parentheses in order of operations with addition, subtraction, multiplication, and division equations. Then these Spring Mystery Detective pack of math activities and order of operations worksheets are perfect for your students to capture their imagination. They can be used in class, for a homework activity, or assessment worksheet as students begin to learn how to solve numerical expressions. perfect for the spring months leading up to the Spring Break and Easter.\u003c\/p\u003e\n\n\u003cp\u003eThese worksheets are \u003cstrong\u003eWITH No exponents and NO negative numbers\u003c\/strong\u003e so are perfect to introduce your students to PEMDAS and BEDMAS. They are \u003cstrong\u003efun math activities\u003c\/strong\u003e that are designed to be done in one class period each.\u003c\/p\u003e\n\n\u003cp\u003eThere are 5x Mini Mystery Detective Order of Operations Worksheets in this pack. At the top of each worksheet is a story to set the scene of the Mini Mystery Detective, students then answer the questions to narrow down the suspects and options until they have solved these fun daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eEach Mystery Detective case is an independent escape room (or crack the code) type of activity where students identify suspects with puzzles and word problems instead of using locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy and please remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eKiwiland Education\u003c\/p\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":51950635614578,"sku":"13277325","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/spring-order-of-operations-worksheets-pemdas-13277325.jpg?v=1792461820"},{"product_id":"solving-multi-step-equations-with-variables-on-both-sides-mystery-detective","title":"Solving Multi-Step Equations: Variables on Both Sides | Mystery Detective Worksheets | Grades 7–10 | Algebra","description":"\u003cp\u003eLooking for \u003cstrong\u003emulti-step equations worksheets with variables on both sides\u003c\/strong\u003e? These \u003cstrong\u003efun and interactive Mini Mystery Detective pack\u003c\/strong\u003e are perfect for \u003cstrong\u003e7th, 8th, and 9th-grade students\u003c\/strong\u003e! Designed to reinforce \u003cstrong\u003esolving multi-step equations\u003c\/strong\u003e, these activities work great for \u003cstrong\u003ehomework, math review, or in-class lessons\u003c\/strong\u003e. Keep students engaged while strengthening their algebra skills with these \u003cstrong\u003eready-to-use\u003c\/strong\u003e and \u003cstrong\u003eclassroom-tested\u003c\/strong\u003e resources!\u003c\/p\u003e\n\n\u003cp\u003eThese Multi-Step Equations Mystery Detectives are designed to be done in one class period. This pack contains five solving multi-step equations with variables on both sides mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese \u003cstrong\u003eSolving Multi-Step Equations With Variables On Both Sides\u003c\/strong\u003e worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 7th-grade, 8th-grade, and 9th-grade students. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these multi-step equations math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland Education\u003c\/p\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":51950641283442,"sku":"13197257","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/multi-step-equations-variables-on-both-sides-worksheets-13197257.jpg?v=1792461951"},{"product_id":"multiplying-fractions-with-area-models-mystery-detective-worksheets","title":"Multiplying Fractions with Area Models | Mystery Detective Worksheets | Grades 4–6 | Printable Detective Pack","description":"\u003cp\u003eAre you looking for multiplying fractions area model \u003cstrong\u003emath activities and worksheets using the Area Model or Box Method\u003c\/strong\u003e These engaging mixed fractions multiplication Mini Mystery Detective packs of math worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTwo Versions included:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWith Support: Cells are included in the area model\u003c\/li\u003e\n  \u003cli\u003eWithout Support: Students draw the area model themselves\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five area model Mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese \u003cstrong\u003earea model mixed fraction multiplication worksheets\u003c\/strong\u003e provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 4th-grade and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these area model multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland Education\u003c\/p\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":51950643544434,"sku":"13022832","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/multiplying-fractions-area-model-worksheets-grade-5-13022832.jpg?v=1792461674"},{"product_id":"area-model-multiplication-mystery-detective","title":"3-Digit by 2-Digit Area Model Multiplication | Mystery Detective Worksheets | Grades 3–6 | Printable Detective Pack","description":"\u003cp\u003eAre you looking for multi-digit multiplication math activities and worksheets using the Area Model or Box Method? These engaging 3x2 digit multiplication Mini Mystery Detective worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five area model Mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese area model multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 4th-grade and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these area model multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre you after Box Method Long Division worksheets:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52004078125426,"sku":"12794278","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/area-model-multiplication-3-by-2-digit-worksheets-grade-5-12794278.jpg?v=1792460826"},{"product_id":"2x2-digit-area-model-mystery-detective","title":"2-Digit by 2-Digit Area Model Multiplication | Mystery Detective Worksheets | Grades 3–6 | Printable Detective Pack","description":"\u003cp\u003eAre you looking for multi-digit multiplication math activities and worksheets using the Area Model or Box Method? These engaging 2x2 digit multiplication Mini Mystery Detective worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five area model Mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese area model multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 4th-grade and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these area model multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre you after Box Method Long Division worksheets:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52004082549106,"sku":"12800366","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/area-model-multiplication-2-by-2-digit-worksheets-grade-4-5-12800366.jpg?v=1792460555"},{"product_id":"2x1-digit-area-model-mystery-detective","title":"2-Digit by 1-Digit Area Model Multiplication | Mystery Detective Worksheets | Grades 3–6 | Printable Detective Pack","description":"\u003cp\u003eAre you looking for multi-digit multiplication math activities and worksheets using the Area Model or Box Method? These engaging 2x1 digit multiplication Mini Mystery Detective worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five area model Mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese area model multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 3rd-grade and 4th-grade students. They could also be used with struggling 5th-grade students who need extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these area model multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre you after Box Method Long Division worksheets:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52004115251570,"sku":"12776181","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/area-model-multiplication-2-by-1-digit-worksheets-grade-4-12776181.jpg?v=1792460402"},{"product_id":"3x1-digit-area-model-mystery-detective","title":"3-Digit by 1-Digit Area Model Multiplication | Mystery Detective Worksheets | Grades 3–6 | Printable Detective Pack","description":"\u003cp\u003eAre you looking for multi-digit multiplication math activities and worksheets using the Area Model or Box Method? These engaging 3x1 digit multiplication Mini Mystery Detective worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five area model Mysteries. At the top of each page is a story to set the scene. Students then answer the questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003eThese area model multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 3rd-grade, 4th-grade, and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these area model multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre you after Box Method Long Division worksheets:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52004116660594,"sku":"12770544","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/area-model-multiplication-3-by-1-digit-worksheets-grade-4-5-12770544.jpg?v=1792460695"},{"product_id":"2-digit-subtraction-regrouping-mystery-detective-worksheets","title":"2-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 1–4 | Printable Detective Pack","description":"\u003cp\u003e2 digit subtraction with regrouping worksheets for 2nd grade and 3rd grade: five Mystery Detective math cases, borrowing from the tens on every page. Print and go with full answer keys: no prep math activities for math centers, early finishers, morning work, homework and sub plans. Subtraction with regrouping is the skill 2nd grade and 3rd grade students need the most practice at, and these school mysteries give it to them without a plain worksheet in sight. Use the pack for math centers, morning work or early finishers, and a CSI Mini Mystery Detective marks itself.\u003c\/p\u003e\n\n\u003cp\u003eBorrowing is the point in the subtraction unit where repetition pays off most, and a student in trouble whose name nobody knows is what gets five pages of it done with a smile. Students cross a suspect off with every answer, checking their own borrowing as they go, and the pages mark themselves. One CSI Mini Mystery Detective math case fits a morning work slot.\u003c\/p\u003e\n\u003cp\u003eOne case follows a student picking up trash around the playground, and another is about an apple missing from a lunch box. Students subtract, then cross off the clue that matches. When they borrow correctly, the clue lists narrow down to a single answer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Apple\u003c\/strong\u003e - an apple taken from a lunch box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaught Being Good\u003c\/strong\u003e - who has been doing good deeds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinding Trash\u003c\/strong\u003e - a student cleaning up the playground\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIn Trouble\u003c\/strong\u003e - which student got in trouble\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Surprise Present\u003c\/strong\u003e - an unsigned gift for the teacher\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive cases of 2 digit subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eA borrow in every problem\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies of all five\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CSI Mini Mystery Detective is a single page: a crime, a set of problems and short clue lists beside them. Each clue has a number. Students cross off any clue their answer matches, and what's left tells them who did it.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse this pack after borrowing from the tens has been taught. It's also a good refresher for 3rd graders before 3 digit subtraction. The cases work as homework, with small groups, on sub days and in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 2nd grade and 3rd grade. 2nd graders meet borrowing from the tens here.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBorrowing practice on every page\u003c\/li\u003e\n  \u003cli\u003eSchool stories\u003c\/li\u003e\n  \u003cli\u003eNothing to prepare\u003c\/li\u003e\n  \u003cli\u003eStudents know right away if an answer is off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52010345529714,"sku":"4915145","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/2-digit-subtraction-with-regrouping-worksheets-1st-2nd-grade-4915145.jpg?v=1792462230"},{"product_id":"3-digit-addition-regrouping-mystery-detective-worksheets","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Printable Detective Pack","description":"\u003cp\u003e3 digit addition with regrouping math activities for 2nd grade and 3rd grade: five math cases, each a Mystery Detective page of column sums. Print and go with full answer keys: no prep math worksheets for morning work, math centers, early finishers, homework and sub plans. Three digit addition with regrouping practice for 2nd grade and 3rd grade, set around school so it fits any week of the year. It runs as a math center, a homework set or a 3rd grade math review, and the CSI Mini Mystery Detective format means students check their own work.\u003c\/p\u003e\n\n\u003cp\u003eThree digit carrying is where a class learns to write the columns out properly, and five cases with a missing hat make that the fun part. Every page is self-marking, and five math pages make one Mystery Detective download.\u003c\/p\u003e\n\u003cp\u003eStudents carry across the tens and hundreds to find each total, then use it to cross off one clue. Each page has four clue lists: who, where, when and what. The stories are about school life, like missing pens and a lost school hat. When students finish with one clue left in every list, they know their carrying was right.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Pens\u003c\/strong\u003e - pens gone from the classroom\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Mystery Gift\u003c\/strong\u003e - a present with no name on it\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Vacation\u003c\/strong\u003e - a student's surprise trip\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Hat\u003c\/strong\u003e - a lost school hat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStudent Prize\u003c\/strong\u003e - good deeds and a prize\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive color case pages of 3 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eThe same five in black and white\u003c\/li\u003e\n  \u003cli\u003eAn answer key for each case\u003c\/li\u003e\n  \u003cli\u003eFour clue lists on every page\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt's a printed case on a single page: a crime at the top, addition problems underneath and short clue lists beside them. Every clue has a number. Students cross off clues as their answers match, and the leftovers are the solution.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse it once 3 digit addition has been taught and students are ready to practice on their own. It's also good to have after a long break, when carrying needs a refresher. The cases suit math centers, small groups, sub days and homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 2nd grade and 3rd grade. 3rd graders can use it before 4 digit addition starts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrint and hand out\u003c\/li\u003e\n  \u003cli\u003eColor and black and white\u003c\/li\u003e\n  \u003cli\u003eSchool stories\u003c\/li\u003e\n  \u003cli\u003eStudents can check their own totals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52010352607602,"sku":"4923114","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-addition-with-regrouping-worksheets-2nd-3rd-grade-4923114.jpg?v=1792462233"},{"product_id":"3-digit-subtraction-regrouping-mystery-detective-worksheets","title":"3-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Printable Detective Pack","description":"\u003cp\u003e3 digit subtraction with regrouping worksheets for 2nd grade and 3rd grade, five Mystery Detective math cases with borrowing across the columns throughout. No prep math activities, print and go with full answer keys, for morning work, math centers, early finishers, homework and sub plans. School stories carry the cases, so this 3 digit subtraction with regrouping practice suits 2nd grade and 3rd grade in any month. Teachers use it as a math center, a homework set or subtraction review, and one CSI Mini Mystery Detective download covers the week.\u003c\/p\u003e\n\n\u003cp\u003eBorrowing across two columns is the part of the subtraction unit that needs the most practice, and five short cases with a prize and no winner get it practiced with real enthusiasm. Each answer knocks one clue off the list, so every page is self-marking. One CSI Mini Mystery Detective math case a day covers the week.\u003c\/p\u003e\n\u003cp\u003eEvery problem needs borrowing, and some need it across two columns. Students solve each one, then cross off the clue with the same number. The cases are set around school, with a lost library book, money found on the ground and a class prize. Students can check their own borrowing as they work.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Book\u003c\/strong\u003e - a library book that hasn't come back\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoney Found\u003c\/strong\u003e - whose money is on the ground\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaught Being Good\u003c\/strong\u003e - a student doing good deeds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Ball\u003c\/strong\u003e - finding the owner of a ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Class Prize\u003c\/strong\u003e - who wins, and what for\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive color case pages of 3 digit subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eThe same cases in black and white\u003c\/li\u003e\n  \u003cli\u003eAn answer key for each case\u003c\/li\u003e\n  \u003cli\u003eProblems set out in columns\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt's one page with a short crime story, a set of subtraction problems and clue lists for who, where and when. Each clue carries a number. Matching answers cross clues off, and the ones left over solve the case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse this pack once borrowing has been taught and your class needs practice on their own. It works again as review before a test, or for 3rd graders who need a refresher before 4 digit subtraction. You can hand out one case at a time. They're handy as homework, for early finishers and in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 2nd grade and 3rd grade. 2nd graders meet borrowing here, and 3rd graders use it for review.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrint and go\u003c\/li\u003e\n  \u003cli\u003eBoth color and black and white\u003c\/li\u003e\n  \u003cli\u003eStudents see right away if an answer doesn't match\u003c\/li\u003e\n  \u003cli\u003eSchool stories kids know\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52011195531634,"sku":"4932127","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-subtraction-with-regrouping-worksheets-2nd-3rd-grade-4932127.jpg?v=1792462370"},{"product_id":"2-digit-addition-no-regrouping-mystery-detective-worksheets","title":"2-Digit Addition Without Regrouping | Mystery Detective Worksheets | Grades 1–3 | Printable Detective Pack","description":"\u003cp\u003e2 digit addition with no regrouping worksheets for 1st grade and 2nd grade: five short math sheets, each a Mystery Detective page for the first half of the year. Print and go with full answer keys: no prep math activities for morning work, math centers, early finishers, homework and sub plans. Short pages of 2 digit addition without regrouping for 1st grade and 2nd grade, set around school, that a six year old can finish and feel good about. They suit math centers, morning work and early finishers in the first half of the year, with a CSI Mini Mystery Detective story on every page.\u003c\/p\u003e\n\n\u003cp\u003eThe first half of first grade is where addition without carrying gets its practice, and a missing toy to find is what makes the practice worth doing for a six year old. Every total takes a clue off the list, so they finish the page to learn who did it, and one case fits a morning work slot. Each CSI Mini Mystery Detective math page is self-marking, with an answer key included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Toy\u003c\/strong\u003e - a classmate's toy has gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMystery Present\u003c\/strong\u003e - a gift with no name on it\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Fruit\u003c\/strong\u003e - someone took the lunchbox fruit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Student\u003c\/strong\u003e - one child is absent, nobody knows who\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGotcha\u003c\/strong\u003e - a student caught doing the right thing\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each one page of 2 digit addition with no regrouping\u003c\/li\u003e\n  \u003cli\u003eSixteen sums on every case, with every total under 100\u003c\/li\u003e\n  \u003cli\u003eFour clue lists on each page, so the class names the who, the where, the when and the what\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: nothing to cut, laminate or set up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a single printed page with a crime on it and four lists of clues running down the side. Each clue carries a number, every correct total matches one of them, and that clue is struck out. Sixteen questions later one name, one place, one time and one object are left standing, and those are the answer. The arithmetic is the only way in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese fit the weeks after addition within 20 is secure and a class is meeting two digit columns for the first time. Because nothing carries, students can settle into lining up tens and ones with only one thing to think about, which is exactly what you want before regrouping is taught. Later in the year the same five cases make a solid confidence page for anyone who needs one.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade. First graders meet these once addition within 20 is secure, and second graders use them as a warm up in the weeks before regrouping starts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA wrong answer shows up on its own, because no clue will match it\u003c\/li\u003e\n  \u003cli\u003eNothing to prepare beyond pressing print\u003c\/li\u003e\n  \u003cli\u003eFive cases covers a full week of morning work\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52012781273458,"sku":"4939074","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/2-digit-addition-without-regrouping-worksheets-1st-2nd-grade-4939074.jpg?v=1792460402"},{"product_id":"4-digit-addition-regrouping-mystery-detective-worksheets","title":"4-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Printable Detective Pack","description":"\u003cp\u003e4 digit addition with regrouping math worksheets for 3rd grade and 4th grade, five Mystery Detective math case files of sixteen sums a page across four columns. Print and go with full answer keys: no prep math activities for morning work, math centers, early finishers, homework and sub plans. Everyday school stories carry the cases, so this 4 digit addition with regrouping practice works in any month for 3rd grade and 4th grade. Teachers use it for 4th grade math review, a math center or a sub plan, and a CSI Mini Mystery Detective marks itself.\u003c\/p\u003e\n\n\u003cp\u003eFour digit addition is a long way to carry for a third grader, and a mystery singer in the music room is what holds them, happily, to the last sum. The pages are self-marking throughout, and the whole set is five math pages in a Mystery Detective download.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox of Chocolates\u003c\/strong\u003e - a box on the desk, unsigned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Pen\u003c\/strong\u003e - a friend's pen has disappeared\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMystery Singer\u003c\/strong\u003e - somebody is singing in the music room\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActs of Kindness\u003c\/strong\u003e - good deeds and no name\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHoliday Time\u003c\/strong\u003e - a surprise trip, destination unknown\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each a page of 4 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eSixteen sums per case, set in columns ready to carry\u003c\/li\u003e\n  \u003cli\u003eFour clue lists per page: the who, the where, the when and the what\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a single page with one crime on it and four short clue lists beside the sums. Every clue carries a number, the questions produce those numbers, and a matching answer strikes that clue out. After sixteen questions the clues left untouched are the solution. The arithmetic is the only route to it, which is why a careless carry cannot slip past unnoticed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUse this one when the class has moved past three digits and you want the extra column practiced properly rather than assumed. It is also the right set for the weeks before testing, when multi digit addition is worth a last run. Because everything a student needs is printed on the page, it goes straight into a sub folder or a centers rotation with no explaining.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, test prep, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade. Third graders use these at the end of the multi digit addition unit, and fourth graders use them as a fluency set early in the year.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne missed carry is caught by the page, not by you\u003c\/li\u003e\n  \u003cli\u003eNo preparation of any kind beyond printing\u003c\/li\u003e\n  \u003cli\u003eFive cases makes a full week of warm ups\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52013753434482,"sku":"4939646","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/4-digit-addition-with-regrouping-worksheets-3rd-4th-grade-4939646.jpg?v=1792460958"},{"product_id":"4-digit-subtraction-regrouping-mystery-detective-worksheets","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Printable Detective Pack","description":"\u003cp\u003e4 digit subtraction with regrouping math activities for 3rd grade and 4th grade: five math cases in the Mystery Detective format, borrowing across four columns on every page. Print and go with full answer keys: no prep math worksheets for morning work, math centers, early finishers, homework and sub plans. Four digit subtraction with regrouping for 3rd grade and 4th grade, set around school so it fits any month, and the borrowing practice a class needs before moving on. It suits math centers, homework and 4th grade math review, and a CSI Mini Mystery Detective marks itself.\u003c\/p\u003e\n\n\u003cp\u003eBorrowing across four columns is the skill that carries the whole multi digit unit, and a prize with no winner named is what gets the practice done with a smile. The lineup does the checking, so the marking is student-led. One CSI Mini Mystery Detective math case a day covers the week.\u003c\/p\u003e\n\u003cp\u003eSome problems need a borrow in one place and others need it in two or three. Students work each one, then cross off the matching clue in four lists: who, where, when and what. The stories include fruit missing from a lunch box and a library book that never came back.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMystery Present\u003c\/strong\u003e - a gift with no name on it\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActs of Kindness\u003c\/strong\u003e - good deeds around the school\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Fruit\u003c\/strong\u003e - fruit gone from a lunch box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStudent Prize\u003c\/strong\u003e - who won the prize\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Book\u003c\/strong\u003e - a library book not returned\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive cases of 4 digit subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eFour clue lists on each page\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies of every case\u003c\/li\u003e\n  \u003cli\u003eAnswer keys\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStudents read a short crime story, solve the subtraction and cross off clues that match their answers. Each clue has a number beside it. By the end, one clue is left in every list, and that's the solution.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese work after 4 digit subtraction has been taught, and as a start-of-year check in 4th grade. Try them in a math center, with a small group, on a sub day or in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor 3rd grade and 4th grade classes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBorrowing across four places\u003c\/li\u003e\n  \u003cli\u003ePrint and go\u003c\/li\u003e\n  \u003cli\u003eStudents catch their own mistakes\u003c\/li\u003e\n  \u003cli\u003eSchool stories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52014359871858,"sku":"4942299","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/4-digit-subtraction-with-regrouping-worksheets-3rd-4th-grade-4942299.jpg?v=1792462370"},{"product_id":"factoring-quadratics-mystery-detective-worksheets","title":"Solving Quadratic Equations by Factoring | Mystery Detective Worksheets | Grades 8–11 | Algebra","description":"\u003cp\u003eSolving quadratic equations by factoring worksheets for Algebra 1: five math cases, each a Mystery Detective page where students factor and find both roots. No prep, print and go, full answer keys, for warm ups, early finishers, homework, test prep and sub plans across the factoring unit. Solving quadratic equations by factoring for Algebra 1, from simple trinomials to a leading coefficient, inside five cases written for older students. It suits warm ups, homework, test prep and sub plans through the factoring unit, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eFactoring is the part of the quadratics unit that needs volume, and a stolen phone and a hacked website make twenty equations the part students want to get through. Each pair of roots eliminates a suspect, so the marking is student-led, and the leading coefficient cases sort out who is ready for the test. Each CSI Mini Mystery Detective math case fills a period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Gradebook\u003c\/strong\u003e - no number in front of x squared\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Bungling Burglar\u003c\/strong\u003e - no number in front of x squared\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Mascot\u003c\/strong\u003e - a leading coefficient to deal with\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Stolen Phone\u003c\/strong\u003e - a leading coefficient to deal with\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Hacked Website\u003c\/strong\u003e - mixed review of everything above\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each a page of quadratic equations solved by factoring\u003c\/li\u003e\n  \u003cli\u003eCases ordered by difficulty, from a leading coefficient of one to mixed review\u003c\/li\u003e\n  \u003cli\u003eA suspect lineup beside the equations, so each answer rules one out\u003c\/li\u003e\n  \u003cli\u003eA contents page listing what every case covers\u003c\/li\u003e\n  \u003cli\u003eA full answer key for all five cases\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a printable case: one crime, one lineup of suspects, and the equations that eliminate them. Every suspect carries a value, the roots students find produce those values, and a correct answer strikes that name out until one is left. It runs like an escape room with no locks and no app, and correct factoring is the only way to the culprit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis set belongs in the practice half of the quadratics unit, once the class can factor a trinomial on the board and needs to do it alone. Because the cases are ordered by difficulty, you can hand out the first two while a group is still finding its feet and keep the mixed review for revision week. Everything a student needs is printed on the page, so it works as a sub folder resource without a handover.\u003c\/p\u003e\n\n\u003cp\u003eUse it for warm ups, early finishers, homework, test prep, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for Algebra 1, which is usually 8th grade or 9th grade. It also suits a 10th grade class revising factoring before quadratic functions, and students repeating the topic.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA factoring error is caught by the lineup, not at marking time\u003c\/li\u003e\n  \u003cli\u003eThe design and the writing suit older students\u003c\/li\u003e\n  \u003cli\u003eFive cases ordered by difficulty, so you can differentiate by case\u003c\/li\u003e\n  \u003cli\u003eNo preparation at all beyond pressing print\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for middle school and high school classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52290834465138,"sku":"4914216","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/factoring-quadratics-algebra-1-detective-worksheets-math-centers-homework-4914216.jpg?v=1792461951"},{"product_id":"halloween-mystery-detective-3-digit-addition-subtraction","title":"3-Digit Addition \u0026 Subtraction | Mystery Detective Worksheets | Grades 2–5 | Halloween","description":"\u003cp\u003eHalloween 3 digit addition and subtraction worksheets for 2nd grade and 3rd grade: five Halloween math cases, each a Mystery Detective page with carrying and borrowing across the columns. Print and go with full answer keys, no prep, for October morning work, math centers, early finishers, homework and sub plans. Halloween math for 2nd grade and 3rd grade with 3 digit addition and subtraction with regrouping on the same page, so both skills get a workout in the week of the costume parade. It is October math for math centers, morning work or homework, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eA witch has turned the teacher into a toad, and that is enough to get a second grade class through mixed addition and subtraction with regrouping in the week of the costume parade. All five sheets are self-marking. Each CSI Mini Mystery Detective math case fits a morning work slot.\u003c\/p\u003e\n\u003cp\u003eA witch has turned the teacher into a toad and a classmate into a cat, and nobody knows who's under the costume. Students add or subtract each problem, then cross off the matching clue. The page mixes both operations, so they have to watch the sign.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeacher Toad\u003c\/strong\u003e - the teacher turned into a toad\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrick or Treat Teacher\u003c\/strong\u003e - who surprised the teacher\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCat Friend\u003c\/strong\u003e - a friend turned into a cat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnder the Costume\u003c\/strong\u003e - who is in the costume\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCostume Competition\u003c\/strong\u003e - who won the competition\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive Halloween cases\u003c\/li\u003e\n  \u003cli\u003e3 digit addition and subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAnswer keys\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case is one page with a Halloween story, the problems and clue lists. Clues have numbers. Students cross off the ones that match, and what's left solves the case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse these in October, around Halloween. They also work as mixed addition and subtraction review later in the year. Teachers use them as homework, with small groups, on sub days and at class parties.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 2nd grade and 3rd grade. 3rd graders can use it as October review.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHalloween stories kids will like\u003c\/li\u003e\n  \u003cli\u003eAddition and subtraction together\u003c\/li\u003e\n  \u003cli\u003ePrint and go\u003c\/li\u003e\n  \u003cli\u003eFive separate cases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291164995954,"sku":"4938843","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/halloween-3-digit-addition-and-subtraction-worksheets-2nd-3rd-grade-4938843.jpg?v=1792462234"},{"product_id":"adding-subtracting-integers-mystery-detective-worksheets","title":"Adding \u0026 Subtracting Integers | Mystery Detective Worksheets | Grades 6–9 | Positive \u0026 Negative Numbers","description":"\u003cp\u003eAdding and subtracting integers worksheets for 6th grade and 7th grade: five Mystery Detective integer math cases with positive and negative numbers throughout. No prep, print and go, full answer keys, for math centers, warm ups, early finishers, homework, test prep and sub plans. Adding and subtracting integers practice for 6th grade and 7th grade, positive and negative numbers throughout, with stories written for middle school. It works as a math center, a warm up, test prep or a sub plan through the integers unit, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eGetting the signs right is the whole skill with integers, and a stolen phone and a hacked account get a middle school class looking twice at every one of them. The marking is student-led, so the signs get checked on the page. Five Mystery Detective math cases from one download cover the last week of the unit.\u003c\/p\u003e\n\u003cp\u003eThe stories are written with older students in mind: a social media bully, a kidnapped teacher and a careless burglar are three of the five. Students add and subtract integers, then cross off the clue that matches each answer. A sign error gives a number that isn't on the list, and students notice that themselves.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox of Chocolates\u003c\/strong\u003e - an unsigned gift on the desk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Stolen Phone\u003c\/strong\u003e - a phone taken from a friend\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocial Media Bully\u003c\/strong\u003e - finding who runs the account\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Kidnapper\u003c\/strong\u003e - where the teacher has been taken\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBungling Burglar\u003c\/strong\u003e - a break-in at a friend's house\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive integer cases, color\u003c\/li\u003e\n  \u003cli\u003eThe five cases again in black and white\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003eAddition and subtraction with positive and negative numbers\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CSI Mini Mystery Detective is a printed case with the problems and the clue lists on the same page. Each clue has a number. When an answer matches, that clue is out. Whatever is left at the end is the solution: who, where and when.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis set fits the second half of the integers unit, once students have used a number line and are ready to work without one. It also works as a refresher before integers show up in equations. Try it in a math center, with a small group, for test prep or on a sub day.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 6th grade and 7th grade. 6th graders use it at the end of the integers unit, and 7th graders use it for review.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStories that suit middle school\u003c\/li\u003e\n  \u003cli\u003eColor and black and white versions\u003c\/li\u003e\n  \u003cli\u003eNo prep at all\u003c\/li\u003e\n  \u003cli\u003eStudents can check their signs as they go\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for middle school classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291304554866,"sku":"4944480","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/adding-and-subtracting-integers-worksheets-6th-7th-grade-4944480.jpg?v=1792462370"},{"product_id":"halloween-mystery-detective-4-digit-addition-subtraction","title":"4-Digit Addition \u0026 Subtraction | Mystery Detective Worksheets | Grades 2–5 | Halloween","description":"\u003cp\u003eHalloween 4 digit addition and subtraction worksheets for 3rd grade and 4th grade, in five CSI Mini Mystery Detective cases with math for October centers or homework. Every problem needs regrouping. They're no prep, with black and white copies and answer keys.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn these stories a witch turns the teacher into a frog and a friend into a turtle, and students have to find out who won the costume competition. Each answer matches a clue to cross off. Addition and subtraction are mixed on the page.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFriendly Frog\u003c\/strong\u003e - the teacher has become a frog\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrick or Treat Teacher\u003c\/strong\u003e - a student surprised the teacher\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurtle Trouble\u003c\/strong\u003e - a friend turned into a turtle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnder The Costume\u003c\/strong\u003e - who is behind the mask\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCostume Competition\u003c\/strong\u003e - the winner of the contest\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive Halloween cases of 4 digit addition and subtraction\u003c\/li\u003e\n  \u003cli\u003eRegrouping in every problem\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for every case\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt's a single page per case. The problems are on the left, the clue lists on the right, and each clue has a number. Students cross off what matches, and one clue is left in each list.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese fit the weeks around Halloween. 4th graders can use them as review of both operations, and 3rd graders once 4 digit work has started. Use them for morning work, early finishers, sub days or homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 3rd grade and 4th grade, as October practice.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA Halloween theme\u003c\/li\u003e\n  \u003cli\u003eBoth operations in one pack\u003c\/li\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eStudents check their own answers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291322052978,"sku":"4945170","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/halloween-4-digit-addition-and-subtraction-worksheets-3rd-4th-grade-4945170.jpg?v=1792462370"},{"product_id":"halloween-mystery-detective-2-digit-addition-subtraction","title":"2-Digit Addition \u0026 Subtraction | Mystery Detective Worksheets | Grades 1–3 | Halloween","description":"\u003cp\u003eHalloween 2 digit addition and subtraction worksheets for 1st grade and 2nd grade: five October math case files, Mystery Detective style, both skills on the same page. Print and go with full answer keys: no prep math activities for morning work, math centers, early finishers, homework and sub plans. Halloween math for 1st grade and 2nd grade, with 2 digit addition and subtraction on the same page and a witch to catch, so both skills get practiced in October. It fits Halloween math centers, morning work and early finishers, with a CSI Mini Mystery Detective story on every page.\u003c\/p\u003e\n\n\u003cp\u003eOctober is the month a young class will do almost anything for a good story, and a teacher turned into a skunk keeps them adding and subtracting for a week. Students rule out a suspect with every answer on the way to the witch, and one case fits a morning work slot. Each CSI Mini Mystery Detective math sheet is self-marking.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSkunk Surprise\u003c\/strong\u003e - the teacher has been turned into a skunk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrick or Treat Teacher\u003c\/strong\u003e - a student surprised the teacher\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMouse Mischief\u003c\/strong\u003e - a friend is now a mouse\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnder The Costume\u003c\/strong\u003e - who is inside that costume\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCostume Competition\u003c\/strong\u003e - a winner, and no name read out\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive Halloween cases, each a page of 2 digit addition and subtraction\u003c\/li\u003e\n  \u003cli\u003eSixteen questions per case, mixing both operations\u003c\/li\u003e\n  \u003cli\u003eClue lists beside the questions, so one answer removes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one printed page with a crime at the top and short clue lists beside the questions. Every clue carries a number, the questions produce those numbers, and a correct answer crosses that clue off. Whatever is left at the end is the solution. Nothing is cut, laminated or charged, so the arithmetic does the whole job and a wrong answer fits nothing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe two weeks before Halloween are the obvious spot, and the day itself in particular, when a costume parade has already taken the morning and the class will not settle to anything ordinary. These also work as a straight two digit review at any point in the fall, because the mixed operations page is the same either way. Everything is printed on the sheet, so it goes into the sub folder as it is.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, class parties, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade. First graders use these once two digit work has started, and second graders use them as a mixed operations review in the fall.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA young class stays with it, which is the whole trick in October\u003c\/li\u003e\n  \u003cli\u003eNothing to prepare beyond pressing print\u003c\/li\u003e\n  \u003cli\u003eFive cases covers the two weeks before Halloween\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291326476658,"sku":"4945540","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/halloween-2-digit-addition-and-subtraction-worksheets-1st-2nd-grade-4945540.jpg?v=1792460271"},{"product_id":"zoo-mystery-detective-3-digit-subtraction-worksheets","title":"3-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Zoo Animal Theme","description":"\u003cp\u003e3 digit subtraction with regrouping zoo safari math worksheets for 2nd grade and 3rd grade: five zoo math cases, each a Mystery Detective page. Print and go with full answer keys: no prep math activities for math centers, morning work, early finishers, homework and sub plans. The zoo setting makes this the obvious 3 digit subtraction with regrouping practice for an animal unit or a zoo trip, for 2nd grade and 3rd grade. Teachers use it as zoo math for math centers, morning work or homework, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eA class that has just been to the zoo, or is about to go, will do subtraction with real enthusiasm, and an animal loose from its pen is why they race to the last sum. Every answer rules out a suspect, so the pages mark themselves. Pair it with the zoo addition pack for a full CSI Mini Mystery Detective math week.\u003c\/p\u003e\n\u003cp\u003eThe cases happen on a class trip to the zoo, where an animal is hiding, a classmate goes missing and someone walks off with a bag. Students borrow across the columns to find each answer, then cross off the matching animal, place or time. It fits nicely alongside an animal unit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpot the Animal\u003c\/strong\u003e - which animal is in the enclosure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisappearing Classmate\u003c\/strong\u003e - a classmate lost at the zoo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Bag\u003c\/strong\u003e - who took the bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnimal Noise\u003c\/strong\u003e - which animal made the sound\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Animal\u003c\/strong\u003e - an animal gone from its enclosure\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive zoo cases of 3 digit subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eProblems set out in columns\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for every case\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case fits on one page, with the story at the top and the clue lists down the side. Every clue carries a number. Students cross off the ones their answers match, and the clue left in each list solves the case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBring these out after borrowing across columns has been taught, or the week of a zoo field trip. 3rd graders can use them as fluency practice. Small groups, early finishers, sub days and homeschool lessons all work too.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 2nd grade and 3rd grade, and handy inside an animal unit.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA zoo trip in every case\u003c\/li\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eStudents check their own borrowing\u003c\/li\u003e\n  \u003cli\u003eFive separate cases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291328344434,"sku":"4947535","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-subtraction-with-regrouping-worksheets-2nd-3rd-grade-zoo-theme-4947535.jpg?v=1792462370"},{"product_id":"zoo-mystery-detective-3-digit-addition-worksheets","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Zoo Animal Theme","description":"\u003cp\u003eZoo animals 3 digit addition with regrouping math worksheets, five Mystery Detective cases for 2nd grade and 3rd grade in one download. Print and go, full answer keys, no prep, for math centers, morning work, early finishers, homework and sub plans. Zoo math for 2nd grade and 3rd grade, with 3 digit addition with regrouping on every page and a day at the zoo running through the cases. It pairs with an animal unit, a zoo trip or a plain need for regrouping practice, and the CSI Mini Mystery Detective format means students check their own work.\u003c\/p\u003e\n\n\u003cp\u003eAn animal unit, a zoo trip or the week either side of one is where this set earns its place, because the cases are all at the zoo and the addition underneath is the real work. Students add, match the total to a clue and cross it off, and the marking is student-led from the first page. Five math pages fill one Mystery Detective download, answer keys included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpot the Animal\u003c\/strong\u003e - something is hiding in the enclosure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisappearing Classmate\u003c\/strong\u003e - a classmate lost at the zoo\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Bag\u003c\/strong\u003e - somebody has walked off with a bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnimal Noise\u003c\/strong\u003e - a sound, and nobody can name it\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Animal\u003c\/strong\u003e - one animal is out of its pen\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive zoo cases, each a page of 3 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eSixteen sums per case, set out in columns ready to carry\u003c\/li\u003e\n  \u003cli\u003eClue lists down the side of each page, so one answer removes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one printed page with a crime on it and the clues that solve it listed beside the questions. Each clue has a number, the sums produce those numbers, and a correct answer crosses that clue off. When the last question is finished the untouched clues are the answer. It works like an escape room with no locks, no app and nothing to charge overnight.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis is the pack for a zoo or animal habitats unit, and for the week before or after a trip when the class is still full of it and you want the addition practice to ride along with the theme. It also works any other week of the year, because the math is a standard three digit carrying set and the zoo is only the setting. The instructions are on the page, so a relief teacher needs nothing explained.\u003c\/p\u003e\n\n\u003cp\u003eUse it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade and 3rd grade. Second graders use these once carrying across columns is understood, and third graders use them as a fluency set alongside an animal unit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThe zoo setting sells it to a class that has gone off worksheets\u003c\/li\u003e\n  \u003cli\u003eNothing to prepare, print and hand out\u003c\/li\u003e\n  \u003cli\u003eFive separate cases means five days without a repeated page\u003c\/li\u003e\n  \u003cli\u003eSuits a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291330867570,"sku":"4947315","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-addition-with-regrouping-worksheets-2nd-3rd-grade-zoo-theme-4947315.jpg?v=1792460694"},{"product_id":"place-value-mystery-detective-word-to-standard-form","title":"Place Value: Word Form to Standard Form | Mystery Detective Worksheets | Grades 1–4 | Printable Detective Pack","description":"\u003cp\u003eWord form to standard form place value worksheets for 2nd grade and 3rd grade: five Mystery Detective math cases, three digit numbers throughout. Print and go with full answer keys: no prep place value math activities for math centers, morning work, early finishers, homework and sub plans. Place value practice for 2nd grade and 3rd grade, reading three digit numbers in word form and writing them in standard form, set around school so it fits any week of the place value unit. It works as a math center, morning work or place value review, and a CSI Mini Mystery Detective marks itself.\u003c\/p\u003e\n\n\u003cp\u003eReading three digit numbers written out in words is taught once and then assumed, and this is the practice that keeps it honest, because students see straight away whether they read each hundred, ten and one correctly. One case fits a morning work slot, so the five cover a week of the place value unit, and each CSI Mini Mystery Detective math page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox of Chocolates\u003c\/strong\u003e - a box on the desk, unsigned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Toy\u003c\/strong\u003e - a classmate's toy has gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaught Being Good\u003c\/strong\u003e - somebody doing the right thing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Teacher\u003c\/strong\u003e - a teacher nowhere in school\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Teachers Lunch\u003c\/strong\u003e - the staffroom lunch has vanished\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each a page of word form to standard form conversions\u003c\/li\u003e\n  \u003cli\u003eSixteen numbers per case, all of them three digits\u003c\/li\u003e\n  \u003cli\u003eClue lists beside the questions, so one answer removes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one printed page with a crime on it and short clue lists beside the questions. Every clue carries a number, the answers on the page produce those numbers, and a match strikes that clue out. The clues left at the end are the solution. Nothing is cut, laminated or charged, and reading the number correctly is the only way through.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis is the set for the place value unit, in the week after word form has been introduced and students are still sounding numbers out. It is also worth a run before testing, because word form questions appear on papers long after the unit has finished and they are easy marks to drop. All the instructions are on the page, so it goes into a sub folder as it is.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, test prep, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade and 3rd grade. Second graders use these inside the place value unit, and third graders use them as a quick check that word form stuck over the summer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA misread number matches no clue, so students go back and look\u003c\/li\u003e\n  \u003cli\u003eNo preparation of any kind beyond printing\u003c\/li\u003e\n  \u003cli\u003eFive cases makes a week of place value warm ups\u003c\/li\u003e\n  \u003cli\u003eSuits a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52291331850610,"sku":"4949899","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/word-form-to-standard-form-3-digit-place-value-worksheets-2nd-grade-4949899.jpg?v=1792461820"},{"product_id":"order-of-operations-no-exponents-pemdas-mystery-detective-worksheets-grades-3-8-printable-detective-pack","title":"Order of Operations (No Exponents \/ PEMDAS) | Mystery Detective Worksheets | Grades 3–8 | Printable Detective Pack","description":"\u003cp\u003eThese order of operations worksheets use parentheses with addition, subtraction, multiplication and division, with no exponents and no negative numbers anywhere in them. That makes them a good first PEMDAS activity for 5th grade, set as five CSI Mini Mystery Detective cases with math on every line. Use them in class, as homework, or as a quick check on numerical expressions. They're no prep, and each case comes with an answer key.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEach page has 24 expressions and a list of 25 suspects. When a student solves an expression, the answer matches the number beside one suspect, and that suspect gets crossed off. The last name left is the culprit. Students can see for themselves whether their order of operations was right, without you checking every line.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Phone\u003c\/strong\u003e - a friend's phone has been stolen\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Teacher\u003c\/strong\u003e - a teacher has been kidnapped\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Principal's Car\u003c\/strong\u003e - the principal's car is gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Bank Job\u003c\/strong\u003e - a bank robbery\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiamond Heist\u003c\/strong\u003e - a chest of diamonds stolen\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive one-page cases, each with 24 order of operations problems\u003c\/li\u003e\n  \u003cli\u003eParentheses with all four operations\u003c\/li\u003e\n  \u003cli\u003eWhole numbers only. No exponents and no negatives.\u003c\/li\u003e\n  \u003cli\u003eAn answer key for each case\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt's a one-page case. A short story at the top says what happened, the problems fill the middle of the page, and the suspects are listed with a number beside each name. Students cross off a suspect every time an answer matches. One suspect is left at the end.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis pack is written for the start of the order of operations unit, when students know what PEMDAS (or BEDMAS) stands for and are learning to work parentheses first. Leaving out exponents and negative numbers keeps their attention on that one step. Each case is designed to fit in one class period. The cases also suit small groups, bell ringers, sub days and review before a test.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 5th grade, where order of operations with parentheses is part of the standards (5.OA.A.1). Strong 4th graders can use it as an extension, and 6th graders can use it as a review before exponents come in.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNothing to prepare. Print a page and hand it out.\u003c\/li\u003e\n  \u003cli\u003eStudents can tell on their own when an answer has gone wrong\u003c\/li\u003e\n  \u003cli\u003eFive separate cases\u003c\/li\u003e\n  \u003cli\u003eA first step into PEMDAS before exponents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary and middle school classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955060367730,"sku":"8654130","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/order-of-operations-pemdas-worksheets-grades-3-8-8654130.jpg?v=1792462504"},{"product_id":"order-of-operations-with-exponents-pemdas-mystery-detective-worksheets-grades-5-8-printable-detective-pack","title":"Order of Operations (With Exponents \/ PEMDAS) | Mystery Detective Worksheets | Grades 5–8 | Printable Detective Pack","description":"\u003cp\u003eOrder of operations worksheets with exponents and parentheses, written for your 6th grade class. Each of the five CSI Mini Mystery Detective math cases mixes squares and cubes with addition, subtraction, multiplication and division, and there are no negative numbers. Use them as a PEMDAS activity in math centers or send them home as homework. There's nothing to prep, and you get an answer key for every case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe exponents here are squares and cubes, and most expressions put one inside parentheses. Students have to work the exponent before they multiply or divide, and this pack gives them plenty of practice at that step. Every answer points to one suspect to cross off. A student who reaches the bottom of the page with a single name left has solved the order of operations correctly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Phone\u003c\/strong\u003e - tracking down a stolen phone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Teacher\u003c\/strong\u003e - finding a kidnapped teacher\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Principal's Car\u003c\/strong\u003e - a car taken from school\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Bank Job\u003c\/strong\u003e - a robbery at the bank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiamond Heist\u003c\/strong\u003e - diamonds missing from a chest\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive one-page cases of order of operations expressions\u003c\/li\u003e\n  \u003cli\u003eExponents and parentheses on every page\u003c\/li\u003e\n  \u003cli\u003eWhole numbers throughout, with no negatives\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for all five cases\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case is one printed page. The story at the top sets up the crime, and the suspects are listed down the page with a number for each one. Students solve the expressions and cross off any suspect whose number they get. When they're done, one suspect remains.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBring this in once your class has met exponents and is ready to fit them into PEMDAS. If they've already done the no exponents pack, this is the next step up. It also suits a review week before a unit test. You could give it to a small group, leave it for a sub, or use it in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 6th grade, where exponents join the order of operations (6.EE.A.1). It works as review in 7th grade, and as a challenge for 5th graders who have finished the parentheses work.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrint and hand out\u003c\/li\u003e\n  \u003cli\u003eExponents, parentheses and all four operations together\u003c\/li\u003e\n  \u003cli\u003eStudents find their own slips as they work\u003c\/li\u003e\n  \u003cli\u003eFive cases for five different days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary and middle school classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955094741362,"sku":"11504808","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/order-of-operations-with-exponents-worksheets-pemdas-11504808.jpg?v=1792462509"},{"product_id":"adding-and-subtracting-decimals-mystery-detective-worksheets-grades-4-6-printable-detective-pack","title":"Adding and Subtracting Decimals | Mystery Detective Worksheets | Grades 4–6 | Printable Detective Pack","description":"\u003cp\u003eAdding and subtracting decimals worksheets for 5th grade, used again in 6th: five CSI Mini Mystery Detective math cases where students line up the decimal points, find the suspect with that answer and cross the name off until one is left. Every answer matches a single suspect, so a misplaced decimal point shows up on the lineup before it shows up on a test. Print and go with full answer keys: math activities for the decimals unit, then math centers, early finishers, homework, morning work, test prep and sub plans all year.\u003c\/p\u003e\n\n\u003cp\u003eFive CSI Mini Mystery Detective math cases in one file is a week of decimal practice without handing out the same page twice, and the lineup does the checking so you are not marking the same slip twenty times. Use one with the whole class after the lesson, then keep the rest for early finishers and the sub folder.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Museum Theft\u003c\/strong\u003e - the museum loses its treasure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecret Blueprint Heist\u003c\/strong\u003e - the blueprint is stolen overnight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Secret Sauce\u003c\/strong\u003e - the kitchen loses its famous recipe\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChampionship Soccer Ball\u003c\/strong\u003e - gone hours before the big game\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExperimental Lab\u003c\/strong\u003e - somebody sabotaged the whole lab\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eAdding and subtracting decimals on every page, to 5th grade standard\u003c\/li\u003e\n  \u003cli\u003eNumbers with different numbers of decimal places, so students have to line them up\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a printable case with a lineup of suspects, each carrying a number. The questions on the crime sheet produce those numbers, a correct answer strikes one suspect off, and the last name standing is the culprit. Because the elimination depends on the arithmetic, these detective activities catch mistakes that a page of math worksheets would let through. One case takes a class period, with nothing to prepare and nothing to buy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUse this in the decimal unit once the class can add and subtract but is still lining the columns up by the last digit instead of the point. That single habit is behind most of the wrong answers, and it hides beautifully on a normal worksheet. Here it crosses off the wrong suspect, so the student sees the problem and goes back to the place value rather than the arithmetic.\u003c\/p\u003e\n\n\u003cp\u003eIt suits test prep, homework, math centers, morning work, early finishers, sub plans, homeschool lessons and spiral review, with a class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 5th grade, where adding and subtracting decimals sits in the standards, and used with 6th graders as fluency practice. Fourth graders take it once decimal place value is secure, and 7th graders use it as a refresher before operations with negatives.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMixed decimal places, so students have to line the points up themselves\u003c\/li\u003e\n  \u003cli\u003eStudents catch their own errors when the wrong suspect comes off the lineup\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer keys make grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary and middle school classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955114664306,"sku":"9454637","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/adding-and-subtracting-decimals-worksheets-5th-grade-9454637.jpg?v=1792461132"},{"product_id":"dividing-decimals-mystery-detective-worksheets-grades-4-7-printable-detective-pack","title":"Dividing Decimals | Mystery Detective Worksheets | Grades 4–7 | Printable Detective Pack","description":"\u003cp\u003eDividing decimals worksheets for 5th grade and 6th grade, five CSI Mini Mystery Detective math cases where each quotient rules a suspect out until one name is left. Written to 5.NBT.7, so every page is decimal division practice that checks itself, because a misplaced decimal point lands on no suspect at all. Print and go with full answer keys: math activities for the decimals unit, then math centers, early finishers, homework, morning work, test prep and sub plans any month of the year.\u003c\/p\u003e\n\n\u003cp\u003eDecimal division is the last stop in the decimals unit and the one most likely to come up again at test time, which is why a set you can reuse matters. Students divide, match the quotient to a name and cross it off, so they catch a slipped decimal point themselves before you see it. Use one CSI Mini Mystery Detective math case with the whole class and keep four for spiral review.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Gem\u003c\/strong\u003e - a rare gem vanishes without trace\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMythical Potion\u003c\/strong\u003e - the recipe vanishes into thin air\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChampionship Football\u003c\/strong\u003e - the game ball taken before kickoff\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnderwater Research Station\u003c\/strong\u003e - the station has been broken into\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Bakery\u003c\/strong\u003e - the bakery loses its prize recipe\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eDividing decimals on every page, written to 5.NBT.7\u003c\/li\u003e\n  \u003cli\u003eDivisors and dividends that both carry decimals, so the point has to be moved correctly\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective hands your class a crime and a lineup of suspects, and the way through it is the math. Work the crime sheet, match each answer to the suspect wearing that number, cross that name off, and keep going until one suspect has not been ruled out. Because the elimination depends on the arithmetic being right, these detective activities catch errors a page of math worksheets would let through. One case takes a class period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDecimal division is the last thing in the unit and usually the part with the least practice time left, so this is the set that fills that gap. Use it once students can divide whole numbers and are learning to shift the point before they start. Getting the point in the wrong place crosses off the wrong suspect, which makes the error visible instead of it sitting quietly in a column of answers.\u003c\/p\u003e\n\n\u003cp\u003eIt carries test prep, homework, math centers, morning work, early finishers, sub plans, homeschool lessons and spiral review, with a class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 5th grade, where 5.NBT.7 sits, and used with 6th graders as fluency practice. Fourth graders take it once decimal place value is secure, and 7th graders use it as a refresher before percentages and unit rates.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAll about moving the decimal point, which is where students come unstuck\u003c\/li\u003e\n  \u003cli\u003eStudents see the error themselves when the wrong suspect comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer keys make grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary and middle school classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955117678962,"sku":"10229699","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/dividing-decimals-worksheets-5th-grade-5nbt7-csi-mini-mystery-10229699.jpg?v=1792461391"},{"product_id":"2-digit-by-2-digit-multiplication-mystery-detective-worksheets-grades-3-6-printable-detective-pack","title":"2-Digit by 2-Digit Multiplication | Mystery Detective Worksheets | Grades 3–6 | Printable Detective Pack","description":"\u003cp\u003eMulti digit multiplication worksheets for 4th grade and 5th grade, 2 digit by 2 digit throughout, five math cases under Mystery Detective rules with the full algorithm on every problem. No prep, print and go, full answer keys and a black and white set, for math centers, morning work, early finishers, homework, test prep and sub plans in any month. For 4th grade and 5th grade students who know the method and need it to stick, this is 2 digit by 2 digit multiplication practice with a school mystery on every page to keep them at it. It suits a math center, a homework week or a test prep run, and the CSI Mini Mystery Detective format means students check their own work.\u003c\/p\u003e\n\n\u003cp\u003eTwo by two digit multiplication is the first time students carry a partial product and then add, and it takes practice to get steady. The case format makes that practice something they ask for, and the marking is student-led, with answer keys included. Twenty products a page and five pages of math lead to one Mystery Detective culprit at the end.\u003c\/p\u003e\n\u003cp\u003eStudents set out each problem with the standard algorithm, then look for the product among the clues on the right of the page. A matching clue gets crossed off. The cases are school stories, like a stolen skateboard and a box of chocolates left on the teacher's desk, and the student is the investigator. Every page checks itself as they go.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Skateboard\u003c\/strong\u003e - a friend's skateboard stolen\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeacher Appreciation Gift\u003c\/strong\u003e - who left the teacher a gift\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Singer\u003c\/strong\u003e - someone singing in the music room\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChocolates\u003c\/strong\u003e - an unsigned box of chocolates\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActs Of Kindness\u003c\/strong\u003e - good deeds around the school\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive case pages in color\u003c\/li\u003e\n  \u003cli\u003eThe same five cases in black and white\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for every case\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n  \u003cli\u003e2 digit by 2 digit multiplication on every page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case fits on one page. The problems are on the left and the clue lists are on the right, and every clue has a number. When an answer matches a clue, the student crosses it off. The clues that are still there at the end tell them who did it.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse these after the standard algorithm has been taught, when students need more problems to work through on their own. They're also useful the week before a multiplication test. Hand one out for morning work, send one home, or leave the set in your sub folder.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 4th grade and 5th grade. 6th graders who still need multi digit multiplication practice can use them too.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eColor and black and white in one download\u003c\/li\u003e\n  \u003cli\u003eStudents can see when a product doesn't match\u003c\/li\u003e\n  \u003cli\u003eFive separate cases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955130425714,"sku":"5025073","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/2-digit-by-2-digit-multiplication-worksheets-grade-5-5025073.jpg?v=1792462230"},{"product_id":"volume-of-rectangular-prisms-mystery-detective-worksheets-grades-4-7-printable-detective-pack","title":"Volume of Rectangular Prisms | Mystery Detective Worksheets | Grades 4–7 | Printable Detective Pack","description":"\u003cp\u003eNeed volume of rectangular prisms worksheets and activities? These CSI Mini Mystery Detective math cases engage students to calculate and find the volume of rectangular prisms. They are perfect for supplementing your math lessons, homework activities, general class use, or your sub folder.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMath Detective Mysteries are \u003cstrong\u003eengaging math activities\u003c\/strong\u003e that are designed to be done in one class period. There are 3x Mystery Detective math worksheets in this pack. At the top of each page is a story to set the scene of the mystery, students then answer math problems to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese finding volume of rectangular prisms worksheets provide an opportunity to practice both mathematical and problem-solving skills in a more practical context.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMath Detective Mysteries are an independent escape room (or crack the code) type of activity where, instead of using locks, students identify suspects with puzzles and word problems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEnjoy and please remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eClick to follow me\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eKiwiland\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955236430194,"sku":"11295835","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/volume-of-rectangular-prisms-worksheets-5th-grade-csi-mini-mystery-11295835.jpg?v=1792462089"},{"product_id":"3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-christmas-theme","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Christmas Theme","description":"\u003cp\u003eChristmas 3 digit addition with regrouping worksheets for 2nd grade and 3rd grade, five math cases, each a Mystery Detective page of column sums. Print and go with full answer keys: math worksheets and CSI Mini Mystery Detective cases in one, no prep, for morning work, math centers, early finishers, homework and sub plans. The whole pack is built around a school Christmas, from the secret Santa to the staffroom lunch, so 2nd grade and 3rd grade students get 3 digit addition with regrouping practice that feels like part of the season. Use it as Christmas math activities for the last fortnight, a December math center or a self-marking homework set.\u003c\/p\u003e\n\n\u003cp\u003eThe last fortnight before the Christmas break is when a secret Santa to unmask turns a page of sums into the addition practice a class asks for. Because each total has to match a clue, the pages mark themselves. One CSI Mini Mystery Detective math case a day covers the fortnight's mornings.\u003c\/p\u003e\n\u003cp\u003eAn elf has left a present, somebody made the teachers a Christmas lunch, and the family needs someone to carve the turkey. Students carry across the columns to find each total, then cross off the clue it matches. It keeps addition practice going through the last weeks before break.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Turkey\u003c\/strong\u003e - who's carving the turkey\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecret Santa\u003c\/strong\u003e - a gift on the teacher's desk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Kindness\u003c\/strong\u003e - good deeds at Christmas\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Lunch\u003c\/strong\u003e - lunch made for the teachers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Elf\u003c\/strong\u003e - who the elf's present is for\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive Christmas cases of 3 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003eProblems laid out in columns\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CSI Mini Mystery Detective puts a short Christmas story, a set of addition problems and some clue lists on one page. Students cross off the clues their answers match. The clues that remain solve the case.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are for December. 2nd graders can use them at the end of the addition unit, and 3rd graders as review. They work as homework, early finisher work, sub plans or a class party activity.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBest for 2nd grade and 3rd grade.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChristmas stories\u003c\/li\u003e\n  \u003cli\u003eRegrouping in every problem\u003c\/li\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eStudents can check their own totals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955246948722,"sku":"5027229","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-3-digit-addition-with-regrouping-worksheets-2nd-3rd-grade-5027229.jpg?v=1792462233"},{"product_id":"3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-new-year-theme","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | New Year Theme","description":"\u003cp\u003eNew Years 3 digit addition with regrouping worksheets for 2nd grade, 3rd grade and 4th grade: five January math activities, each a Mystery Detective case with sixteen column sums. Print and go with full answer keys and a black and white set, no prep, for math centers, morning work, early finishers, homework and sub plans in the first week of the new year. Somebody set the party popper off early, somebody sang the wrong words to Auld Lang Syne and the countdown is one number short, and every correct total takes a suspect off the list while a missed carry matches nobody, which is how one CSI Mini Mystery Detective download pulls three digit carrying out of the holiday rust.\u003c\/p\u003e\n\n\u003cp\u003eThree digit column addition is the skill worth bringing straight back after a holiday, and the first week back is exactly when this set shines. A case gives the practice a reason to exist, and the marking is student-led, so students find their own carrying slips as they go. It is the bigger sister of the 2 digit New Year pack, with the same party, harder math and the same Mystery Detective rules.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eParty Popper - who set it off early\u003c\/li\u003e\n  \u003cli\u003eNew Year Gift - the gift nobody owns up to\u003c\/li\u003e\n  \u003cli\u003eAuld Lang Syne - working out who sang what\u003c\/li\u003e\n  \u003cli\u003eNew Year Countdown - a count that does not add up\u003c\/li\u003e\n  \u003cli\u003eNew Year Party - the last case of the night\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive color case pages, sixteen addition problems on each\u003c\/li\u003e\n  \u003cli\u003eThe same five cases again in black and white\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for all five cases\u003c\/li\u003e\n  \u003cli\u003eA color in page for early finishers\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page, print and go with nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eThree digit addition with regrouping throughout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue list that solves it. Each clue carries a number, the sixteen sums on the page produce those numbers, and a correct total knocks a clue out. Work to the last question and a single suspect is left standing. Get a column wrong and nothing matches, which sends a student back over their working before you ever see it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReach for this in the first days back in January, once three digit addition has been taught and simply needs keeping warm. It works as homework over the break, as a January center, and as a set to leave for a substitute. Use it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade, 3rd grade and 4th grade. Fifth graders who still need column addition firmed up get plenty out of it, and confident second graders manage it with a little support.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA wrong total matches no clue, so students catch their own slips\u003c\/li\u003e\n  \u003cli\u003eColor and black and white are both in the download\u003c\/li\u003e\n  \u003cli\u003eA color in page for whoever finishes first\u003c\/li\u003e\n  \u003cli\u003eFive cases covers the whole first week back\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no prep math activities, and detective themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955266675058,"sku":"5131465","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/new-year-3-digit-addition-with-regrouping-worksheets-grade-3-5131465.jpg?v=1792460694"},{"product_id":"early-multiplication-arrays-mystery-detective-worksheets-grades-k-4-monster-theme","title":"Early Multiplication Arrays | Mystery Detective Worksheets | Grades K–4 | Monster Theme","description":"\u003cp\u003eEarly multiplication arrays worksheets for 1st grade and 2nd grade, ten beginner math pages with a Mystery Detective twist, equal groups and small arrays a first grader can count. No prep, print and go, full answer keys, for math centers, morning work, early finishers, homework and sub plans as soon as skip counting starts. Students count the rows and columns, write the multiplication, and every correct answer takes a suspect off the board until the teacher who turned into a monster stands alone, five cases asking for the product and five for the factors, so one CSI Mini Mystery Detective download covers the first two weeks of arrays with the checking built into the page.\u003c\/p\u003e\n\n\u003cp\u003eThis is the step where counting in twos and fives turns into something a child can write down, and reading an array as three rows of four rather than twelve dots needs more repeats than any single worksheet allows. Ten cases spread it across two weeks, and a class asks for the next one. Small arrays, one Mystery Detective hunt, math that marks itself.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Ten Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCases one to five - read the array, write the product\u003c\/li\u003e\n  \u003cli\u003eCases six to ten - read the same kind of array, write the factors\u003c\/li\u003e\n  \u003cli\u003eTwelve arrays on every case, each answer knocking out a clue\u003c\/li\u003e\n  \u003cli\u003eSmall arrays throughout, the sizes a first grade class can count\u003c\/li\u003e\n  \u003cli\u003eOne running story - a teacher in the school has turned into a monster\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTen case files in full color\u003c\/li\u003e\n  \u003cli\u003eThe same ten cases again in black and white for cheap printing\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for every case\u003c\/li\u003e\n  \u003cli\u003eA wanted poster and banner deck for the classroom wall\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page - print and go, nothing to cut or laminate\u003c\/li\u003e\n  \u003cli\u003eEverything bundled as a single download\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue lists that solve it. Each clue carries a number beside it, the twelve questions on the page produce those numbers, and a correct answer knocks a clue out. Work to the last array and a single suspect is left standing. Count one row wrong and nothing matches, so the page marks itself.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUse this when a class can skip count aloud but has not yet seen why the multiplication sign is any use, which is usually late in 1st grade or the first weeks of 2nd. It also works as a gentle way back in for a second grader who has lost confidence with times tables. Reach for it in math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group, partners or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade. First graders meet arrays here for the first time, and second graders use the set before formal multiplication facts start.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProducts and factors both covered, so the array is read two ways\u003c\/li\u003e\n  \u003cli\u003eA wrong count matches no clue, so students correct themselves\u003c\/li\u003e\n  \u003cli\u003eColor and black and white are both in the download\u003c\/li\u003e\n  \u003cli\u003eThe posters turn a worksheet into a classroom display\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955298525554,"sku":"7054679","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/early-multiplication-arrays-worksheets-1st-2nd-grade-7054679.jpg?v=1792461392"},{"product_id":"telling-time-to-15-minutes-mystery-detective-worksheets-grades-k-4-monster-theme","title":"Telling Time to 15 Minutes | Mystery Detective Worksheets | Grades K–4 | Monster Theme","description":"\u003cp\u003eTelling time to the quarter hour worksheets for 1st grade and 2nd grade: five math pages, five Mystery Detective cases, sixteen analog clocks on each. No prep, print and go, full answer keys, for math centers, morning work, early finishers, homework and sub plans in the weeks after o'clock and half past are done. A teacher in the school has turned into a monster and only the clocks will say which one, so students read each clock, write the digital time and cross a suspect off with every correct answer; a misread quarter to matches no clue, which sends them back to the clock face before you ever see the page, and the whole CSI Mini Mystery Detective week prints from one file.\u003c\/p\u003e\n\n\u003cp\u003eQuarter to is the reading a class is proudest of, because the minute hand has moved on and the hour hand has not, and sixteen clocks a page is what makes it stick. A misread time matches none of the clues, so students look again without being asked. Eighty clock faces across five math pages, one Mystery Detective monster to unmask by Friday.\u003c\/p\u003e\n\u003cp\u003eO'clock, quarter past, half past and quarter to all come up on every page. Each time a student writes matches one clue, and that clue gets crossed off. One of the teachers has turned into a monster, and the clocks show which one.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Five Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAll five cases follow one story: a teacher somewhere in the school has turned into a monster. Each case has new suspects and a new page of clocks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive cases in color with analog clocks\u003c\/li\u003e\n  \u003cli\u003eBlack and white copies\u003c\/li\u003e\n  \u003cli\u003eAnswer keys\u003c\/li\u003e\n  \u003cli\u003eFive monster wanted posters\u003c\/li\u003e\n  \u003cli\u003eA display banner\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case is a single page. Students read the clocks, write the digital times and cross off the clues that match. The last teacher left is the monster.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse these once your class can read o'clock and half past and is ready for quarter past and quarter to. They also make a good review at the start of 2nd grade. The posters and banner turn the pack into a classroom display. They work as homework, for small groups, on sub days and in homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 1st grade and 2nd grade, and useful in 3rd grade for review.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuarter hours on every page\u003c\/li\u003e\n  \u003cli\u003eAnalog to digital practice\u003c\/li\u003e\n  \u003cli\u003eWanted posters and a banner\u003c\/li\u003e\n  \u003cli\u003eColor and black and white\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955299639666,"sku":"7150769","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/telling-time-to-the-quarter-hour-worksheets-1st-2nd-grade-7150769.jpg?v=1792462611"},{"product_id":"2-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-3-5-christmas-theme","title":"2-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 3–5 | Christmas Theme","description":"\u003cp\u003eChristmas 2 digit subtraction with regrouping math worksheets for 1st grade and 2nd grade: five short Mystery Detective math case files a young class can finish. Print and go with full answer keys, no prep, for December math centers, morning work, early finishers, homework and sub plans. A secret Santa, an elf and a few missing candy canes make this the December subtraction practice a 1st grade or 2nd grade class will happily finish. It is Christmas math with regrouping underneath, ready for math centers, morning work or the last week of term, with a CSI Mini Mystery Detective story on every page.\u003c\/p\u003e\n\n\u003cp\u003eThe last two weeks of term are when a young class needs a reason to sit and subtract, and a secret Santa to unmask is that reason. One CSI Mini Mystery Detective math case fits a morning work slot, and every page marks itself, with answer keys included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass Secret Santa\u003c\/strong\u003e - a gift with no name on the tag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Presents\u003c\/strong\u003e - who gets to unwrap first\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Carols \u0026amp; Songs\u003c\/strong\u003e - carols drifting down the hallway\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Candy Canes\u003c\/strong\u003e - stripped straight off the tree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Elf\u003c\/strong\u003e - an elf leaves a gift for somebody\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eTwo digit subtraction with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eBorrowing on most problems, so the skill actually gets practiced\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a single page case your class cracks with math. The suspects stand in a lineup with a number each, the crime sheet produces those numbers, and a correct answer knocks one suspect out until the last name standing is the culprit. There is no kit and nothing to assemble, so what carries it is the arithmetic, which is what makes detective activities land where math worksheets slide off.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese are for the last two weeks of term, when borrowing still needs work and the class has one eye on the holidays. Five short cases give you something for each of those days that is genuine subtraction practice rather than a coloring page with sums on it. A child who subtracts the smaller digit from the larger one names the wrong suspect and finds out immediately.\u003c\/p\u003e\n\n\u003cp\u003eIt suits test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a class, a small group or one child alone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade, where two digit subtraction with regrouping sits in the standards. Third graders take it as a December refresher, and first graders manage it once subtracting without borrowing is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReal borrowing practice, not a festive page with a few sums on it\u003c\/li\u003e\n  \u003cli\u003eStudents catch the classic subtraction habit as the wrong name goes\u003c\/li\u003e\n  \u003cli\u003eNo prep in the last two weeks of term\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955303342450,"sku":"5037213","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-2-digit-subtraction-with-regrouping-grade-2-5037213.jpg?v=1792460555"},{"product_id":"4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-2-5-robot-theme","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Robot Theme","description":"\u003cp\u003e4 digit subtraction with regrouping worksheets for 3rd grade and 4th grade, a robot themed math game of five Mystery Detective cases with sixteen problems each. No prep, print and go, with full answer keys, for math centers, morning work, early finishers, homework, test prep and sub plans any week of the year. Space bandits, drained robot oil and a machine that has malfunctioned carry the story, students borrow across zeros and match every answer to a clue, and a dropped digit simply never appears on the list, so they find it themselves at problem three rather than at marking time, all inside one CSI Mini Mystery Detective download that owes nothing to a holiday.\u003c\/p\u003e\n\n\u003cp\u003eFour digit subtraction asks for two borrows in the same problem, and this pack is where a student learns to trust their own answer. The clue list only carries the right ones, so they hunt down any digit they dropped themselves. The robots keep them at it until the borrowing is automatic, five robot math pages, Mystery Detective style, and not a pumpkin in sight.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSpace Bandits - something has been taken from the ship\u003c\/li\u003e\n  \u003cli\u003eMissing Robot Oil - the supply has drained away overnight\u003c\/li\u003e\n  \u003cli\u003eRobot Malfunction - working out which machine failed\u003c\/li\u003e\n  \u003cli\u003eRobot Color - a paint job nobody owns up to\u003c\/li\u003e\n  \u003cli\u003eBad Robot - the last case, and the hardest to pin down\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive robot case files, sixteen subtraction problems on each\u003c\/li\u003e\n  \u003cli\u003eFour digit subtraction with regrouping throughout\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for all five cases\u003c\/li\u003e\n  \u003cli\u003eSuspect and clue lists printed beside the problems\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page - print and go, nothing to cut\u003c\/li\u003e\n  \u003cli\u003eOne download, no prep, no laminating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue lists that solve it. Every clue carries a number, the sixteen problems on the page produce those numbers, and a correct answer crosses a clue off. Work to the last question and a single suspect is left standing. Drop a borrow and nothing matches, so the page checks itself.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReach for this after four digit subtraction has been taught and needs practicing until it sticks, which is normally the middle of 3rd grade. It also works as revision at the start of 4th grade, before long division puts the same borrowing under pressure. Nothing in it is seasonal, so it can run in any month. Use it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade, and useful in 5th grade for students who still need subtraction firmed up before they meet decimals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA wrong answer matches no clue, so students find their own slips\u003c\/li\u003e\n  \u003cli\u003eRobots hold a class that has gone cold on plain worksheets\u003c\/li\u003e\n  \u003cli\u003eFive cases is a full week from one print run\u003c\/li\u003e\n  \u003cli\u003eWorks any month - nothing in it is tied to a season\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955315794290,"sku":"5319817","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/4-digit-subtraction-with-regrouping-worksheets-3rd-4th-grade-5319817.jpg?v=1792460961"},{"product_id":"4-digit-addition-and-subtraction-mystery-detective-worksheets-grades-2-5-thanksgiving-theme","title":"4-Digit Addition and Subtraction | Mystery Detective Worksheets | Grades 2–5 | Thanksgiving Theme","description":"\u003cp\u003eThanksgiving 4 digit addition and subtraction worksheets for 3rd grade and 4th grade, five turkey math cases, each a Mystery Detective page of sixteen sums across four columns. Print and go with full answer keys: November math activities, no prep, for morning work, math centers, early finishers, homework and sub plans. For 3rd grade and 4th grade, this is 4 digit addition and subtraction with regrouping in a Thanksgiving setting, the turkey math a class will finish in the week of the holiday. Use it as a November math center, a homework set or a sub plan, and the CSI Mini Mystery Detective format means students check their own work.\u003c\/p\u003e\n\n\u003cp\u003eFour digit columns in the week of a holiday get finished when there is a stolen turkey to find, because the only way to the thief is through the sums. The pages are self-marking, with an answer key for every case. Any CSI Mini Mystery Detective math case left over is a math center in December.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Turkey\u003c\/strong\u003e - somebody has taken the turkey\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThanksgiving Party\u003c\/strong\u003e - an invitation with no sender\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActs of Kindness\u003c\/strong\u003e - good deeds and nobody owning up\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWho is Carving the Turkey\u003c\/strong\u003e - the feast needs a carver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThank You Gift\u003c\/strong\u003e - a gift on the desk, unsigned\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive Thanksgiving cases, each a page of 4 digit addition and subtraction\u003c\/li\u003e\n  \u003cli\u003eSixteen questions per case, with regrouping across four columns\u003c\/li\u003e\n  \u003cli\u003eClue lists beside the questions, so one answer removes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one page holding a crime and the clue lists that solve it. Each clue carries a number, the questions produce those numbers, and a correct answer crosses that clue off until only the solution is left. It behaves like an escape room with no locks, no app and nothing to charge, and working the four columns accurately is the only key to it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis is the November set for an older elementary class, best used in the short week before the holiday when nothing ordinary will hold. It is also worth keeping for a multi digit review later in the year, since the questions are a standard four column set and the theme sits over the top rather than inside the mathematics. All the instructions are printed on the page.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, test prep, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade. Third graders use these once four digit work has begun, and fourth graders use them as a November review of both operations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLong columns still get finished in a short holiday week\u003c\/li\u003e\n  \u003cli\u003ePrint and hand out, with nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eFive cases covers the run up to Thanksgiving\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955319234930,"sku":"4995663","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/thanksgiving-4-digit-addition-and-subtraction-worksheets-3rd-4th-grade-4995663.jpg?v=1792460828"},{"product_id":"3-digit-subtraction-across-zeros-mystery-detective-worksheets-grades-2-6-winter-theme","title":"3-Digit Subtraction Across Zeros | Mystery Detective Worksheets | Grades 2–6 | Winter Theme","description":"\u003cp\u003e3 digit subtraction across zeros worksheets for 3rd grade and 4th grade, five winter Mystery Detective math cases on the regrouping students find hardest. Winter math for December, January and February, then no prep math centers, early finishers, homework and sub plans, print and go with full answer keys. Every correct answer crosses a suspect off the lineup and a wrong one matches nobody, so these subtraction pages send the student back to the zeros on their own, and a CSI Mini Mystery Detective gets a class through the coldest weeks of the year.\u003c\/p\u003e\n\n\u003cp\u003eSubtracting across zeros is usually one question buried in a mixed page, and a whole set of it is what a class needs the week the topic goes wrong. Ice skates, a snowman surprise and a lost pair of skis carry the CSI Mini Mystery Detective math cases, and the lineup catches the borrowed ten before you have to. Keep one case for the review week.\u003c\/p\u003e\n\u003cp\u003eThe zero sits in the tens place, so students have to borrow from the hundreds before they can subtract. The stories are about ice skates, a snowman that appeared overnight and skis that can't be found. Each answer matches one clue to cross off.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIce Skates\u003c\/strong\u003e - where the lost skates are\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSnowman Surprise\u003c\/strong\u003e - who built the snowman\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearing Snow\u003c\/strong\u003e - whose turn it is to shovel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhere are the Skis?\u003c\/strong\u003e - finding the missing skis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWinter Sweater\u003c\/strong\u003e - who left a sweater behind\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive winter cases\u003c\/li\u003e\n  \u003cli\u003e3 digit subtraction across zeros on every page\u003c\/li\u003e\n  \u003cli\u003eAn answer key for each case\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach case is one page with a winter story, subtraction problems and clue lists. Students cross off the clue that matches each answer, and the leftover clues solve it.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese are for after subtracting across zeros has been taught, when students need practice on their own. 5th graders can use them as a refresher before decimal subtraction. Use them in math centers, small groups, as homework or on a sub day.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 3rd grade and 4th grade.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSubtracting across zeros on every page\u003c\/li\u003e\n  \u003cli\u003eA winter theme\u003c\/li\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eStudents catch a wrong borrow themselves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955332505970,"sku":"7678309","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-subtraction-across-zeros-worksheets-3rd-grade-7678309.jpg?v=1792462371"},{"product_id":"4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-3-6-christmas-theme","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 3–6 | Christmas Theme","description":"\u003cp\u003e4 digit subtraction with regrouping Christmas math worksheets for 3rd grade and 4th grade, five Mystery Detective math cases with borrowing across four columns on every page. No prep December math activities with full answer keys, print and go, for math centers, early finishers, homework, morning work and sub plans. Four digit subtraction with regrouping is the biggest borrowing of the year, and this pack gives 3rd grade and 4th grade students a school Christmas reason to practice it. It is December math that runs as a math center, a sub plan or a homework set, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eKeep this one for the week before the break, because a class can run these CSI Mini Mystery Detective math cases without you at the front and a substitute has nothing to explain. Students subtract, match each answer to a suspect and cross that name off, so the marking is student-led even on the biggest borrowing of the year.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Marshmallows\u003c\/strong\u003e - the marshmallows disappear overnight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTeachers Christmas Lunch\u003c\/strong\u003e - who cooked the staffroom lunch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Presents\u003c\/strong\u003e - who gets to unwrap first\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Candy Canes\u003c\/strong\u003e - stripped straight off the tree\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Star\u003c\/strong\u003e - who puts the star on top\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eFour digit subtraction with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eBorrowing across four columns, the hardest subtraction at this level\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a printable case with a lineup of suspects, each carrying a number. The questions on the crime sheet produce those numbers, a correct answer strikes one suspect off, and the last name standing is the culprit. The elimination only works when the math is right, which is what makes these detective activities show up mistakes a page of math worksheets would hide.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFour digit borrowing is the skill that most needs repetitions and least often gets them, and November and December is when the timetable has the least room for it. Five short cases fix both problems at once. Because one wrong borrow puts the wrong name in the frame, students trace the error back through the columns themselves instead of handing you the page.\u003c\/p\u003e\n\n\u003cp\u003eIt covers test prep, homework, math centers, morning work, early finishers, sub plans, homeschool lessons and spiral review, with a class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade, where four digit subtraction sits in the standards. Fifth graders use it as a fluency refresher, and second graders take it once three digit borrowing is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive pages on the hardest subtraction third and fourth graders meet\u003c\/li\u003e\n  \u003cli\u003eStudents trace a wrong borrow back when the wrong name comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep in the busiest month of the year\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955344138610,"sku":"5035455","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-4-digit-subtraction-with-regrouping-grade-4-5035455.jpg?v=1792461132"},{"product_id":"telling-time-to-the-hour-and-half-hour-mystery-detective-worksheets-grades-k-4-monster-theme","title":"Telling Time to the Hour and Half Hour | Mystery Detective Worksheets | Grades K–4 | Monster Theme","description":"\u003cp\u003eTelling time to the hour and half hour worksheets for 1st grade and 2nd grade: five math case files, Mystery Detective style, reading an analog clock and writing the digital time. Print and go with full answer keys: no prep math centers, morning work, early finishers, homework and sub plans. Case one is o'clock only and case five mixes o'clock and half past evenly, so the pack walks a class from the easy reading to the hard one; each right time crosses a teacher off the suspect list, a misread clock matches no clue, and five CSI Mini Mystery Detective cases come in one download.\u003c\/p\u003e\n\n\u003cp\u003eHalf past is the moment a second grade class learns to read an hour hand sitting between two numbers, and a suspect list keeps them reading clock after clock until it comes naturally. One clock, one answer, one name gone, so the page corrects itself before you pick up a pen. Five Mystery Detective math pages cover the week the half hour lands.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Five Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCase one - a full sweep of o'clock times, every hour on the clock face\u003c\/li\u003e\n  \u003cli\u003eCase two - o'clock again, with a fresh suspect list to work through\u003c\/li\u003e\n  \u003cli\u003eCase three - o'clock and half past together for the first time\u003c\/li\u003e\n  \u003cli\u003eCase four - half past leading, with o'clock mixed back through it\u003c\/li\u003e\n  \u003cli\u003eCase five - the two evenly mixed, the hardest reading of the set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each a page of analogue clocks to convert to digital time\u003c\/li\u003e\n  \u003cli\u003eA suspect list down the side of every page, so one answer strikes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for cheap printing\u003c\/li\u003e\n  \u003cli\u003eA red-ink answer key for every case\u003c\/li\u003e\n  \u003cli\u003eA set of wall letters and classroom decorations for the display board\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one printed page holding one crime and the clue lists that solve it. Every clue carries a time beside it, the clocks on the page produce those times, and a correct reading knocks a clue out. When the last clock is done a single teacher is left standing, and the class has its answer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis is the set for the weeks after the half hour is introduced, when a class reads o'clock confidently and now has to cope with the hour hand sitting halfway between two numbers. It earns a second run later in the year, because clock reading is the first thing to go rusty over a break. Keep a copy in the sub folder too, since the instructions sit on the page. Use it for morning work, math centers, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade. First graders use these once o'clock is secure, and second graders as fluency practice before quarter past and quarter to arrive.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eStudents check themselves, because a misread clock matches no clue\u003c\/li\u003e\n  \u003cli\u003eZero prep on a morning when there is none to spare\u003c\/li\u003e\n  \u003cli\u003eOne case a day gives you a week of warm ups\u003c\/li\u003e\n  \u003cli\u003eSuits a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955349381490,"sku":"7161568","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/telling-time-to-the-hour-and-half-hour-worksheets-1st-2nd-grade-7161568.jpg?v=1792462089"},{"product_id":"3-digit-box-method-long-division-no-remainders-mystery-detective-worksheets-grades-3-7-monster-theme","title":"3-Digit Box Method Long Division (No Remainders) | Mystery Detective Worksheets | Grades 3–7 | Monster Theme","description":"\u003cp\u003eGrade 4 and grade 5 box method division, 3 digit dividends by a single digit with no remainders: one CSI Mini Mystery Detective math case across five crime sheets, where each quotient crosses a suspect off the lineup until the Monster Among Us is found. Division worksheets that check themselves, because a quotient that matches no suspect sends the student back into the box. Print and go with full answer keys, for the division unit, math centers, early finishers, homework, morning work and sub plans.\u003c\/p\u003e\n\n\u003cp\u003eThree digit dividends are where the box method earns its place, and a class will work through five CSI Mini Mystery Detective math sheets to find the monster when they would stall on a plain page. Use one sheet a day in the week you teach the method, and keep the set for spiral review before long division proper.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMonster Among Us\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA monster has joined the class, and the only way to work out which one it is, is to divide. Every quotient a student lands on takes one suspect off the lineup, and all five crime sheets run this same case, so the hunt carries on from one page to the next until a single name is left.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive crime sheets, each with its own lineup of suspects, all running the one case\u003c\/li\u003e\n  \u003cli\u003eBox method division with a 3 digit dividend and a single digit divisor\u003c\/li\u003e\n  \u003cli\u003eNo remainders, so every quotient matches a suspect exactly\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every sheet\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a printed case with a lineup of suspects, each carrying a number. The questions on the crime sheet produce those numbers, a correct answer strikes one suspect off, and the last name standing is the culprit. The elimination only works when the math is right, which is what makes these detective activities catch errors that a page of math worksheets would let through. One case fits one class period, with nothing to prepare.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUse this the day after you introduce the box method, while students still need the steps in front of them but not another worked example. Three digit dividends and no remainders keep the load light enough that the method is what they are thinking about. Because the wrong quotient takes out the wrong suspect, a student who drops a step finds out immediately instead of repeating it five times.\u003c\/p\u003e\n\n\u003cp\u003eIt carries test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a class, a small group or a single student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 4th grade and 5th grade, where dividing by a single digit sits in the standards. Third graders take it once they know their division facts, and 6th graders use it as a quick refresher before moving to two digit divisors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThree digit dividends, which is the right size for a first week with the method\u003c\/li\u003e\n  \u003cli\u003eStudents see a dropped step straight away when the wrong name comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer key makes grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955361997170,"sku":"8973893","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/box-method-long-division-3-digit-worksheets-4th-grade-8973893.jpg?v=1792460695"},{"product_id":"4-digit-box-method-long-division-no-remainders-mystery-detective-worksheets-grades-3-7-monster-theme","title":"4-Digit Box Method Long Division (No Remainders) | Mystery Detective Worksheets | Grades 3–7 | Monster Theme","description":"\u003cp\u003eBox method division worksheets for 5th grade and 6th grade, 4 digit dividends by a single digit with no remainders, so every quotient lands on a suspect exactly. One CSI Mini Mystery Detective math case runs across five crime sheets: students work each division in the box, cross a suspect off the lineup and close in on the Monster Among Us. Self-checking math activities for the week the box method is taught, then math centers, early finishers, homework and sub plans, no prep, full answer keys.\u003c\/p\u003e\n\n\u003cp\u003eThe box method only sticks if students use it for a full week while the steps are still in front of them, and five sheets that run one CSI Mini Mystery Detective math case is the set for that week. Each quotient has to match a name, so a slip inside the box shows up on the lineup and they go back themselves rather than handing it to you.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMonster Among Us\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA monster is sitting in class and nobody has spotted which one. Students divide their way through the lineup and each quotient crosses off another suspect. All five crime sheets run this one case, so the class keeps narrowing it down page after page until the last name standing is the monster.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive crime sheets, each with its own lineup of suspects, all running the one case\u003c\/li\u003e\n  \u003cli\u003eBox method division with a 4 digit dividend and a single digit divisor\u003c\/li\u003e\n  \u003cli\u003eNo remainders anywhere, so every quotient lands on a suspect exactly\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every sheet\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective puts a crime, a lineup and a page of math in front of your class, and the only way to name the culprit is to get the math right. Each suspect carries a number, each solved question matches one of them, and that suspect is crossed off until a single name remains. Because a wrong quotient eliminates the wrong person, these detective activities make students check their work in a way math worksheets cannot. One case takes a class period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis belongs in the week you teach the box method, when students can follow the steps with you at the board and then lose the thread on their own. Keeping remainders out means nothing distracts from the method itself, and the case running across all five sheets keeps the class going to the end of the set. A slip in any box crosses off the wrong suspect, so they find it and work back.\u003c\/p\u003e\n\n\u003cp\u003eUse it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 5th grade and 6th grade, where multi digit division sits in the standards. Fourth graders take it once the box method is taught and the no remainder scope keeps the focus on the steps, and 7th graders use it as fluency practice before decimal quotients.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNo remainders, so the box method itself is the only thing being practiced\u003c\/li\u003e\n  \u003cli\u003eStudents trace their own mistake back when the wrong suspect comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer key makes grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary and middle school classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955362619762,"sku":"9072036","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/box-method-long-division-4-digit-worksheets-4th-grade-9072036.jpg?v=1792460958"},{"product_id":"4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-2-5-zoo-safari-theme","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Zoo Safari Theme","description":"\u003cp\u003eZoo animals 4 digit subtraction with regrouping worksheets for 3rd grade and 4th grade, five math activities run as Mystery Detective cases at the zoo. Print and go, no prep, full answer keys and a black and white set, for math centers, morning work, early finishers, homework and sub plans, any month and any animal unit. The zoo setting suits an animal unit, a zoo trip or any month a class needs the practice, and underneath it is 4 digit subtraction with regrouping, borrowing across zeros included, for 3rd grade and 4th grade. It works as a math center, a homework set or a sub plan, and a CSI Mini Mystery Detective is a page students finish rather than put down.\u003c\/p\u003e\n\n\u003cp\u003eFour digit subtraction is where borrowing across a zero becomes second nature, given enough of them. A case gives that mileage happily, and students check their own borrowing as they cross the suspects off. Pair it with the safari addition pack and the zoo carries a whole week of math in Mystery Detective style.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThe Tigers Stripes - a count nobody can agree on\u003c\/li\u003e\n  \u003cli\u003eThe Missing Fruit - somebody has taken it\u003c\/li\u003e\n  \u003cli\u003eMidnight Calls - working out who was where\u003c\/li\u003e\n  \u003cli\u003eZoo Prize - a total that does not add up\u003c\/li\u003e\n  \u003cli\u003eAnimal Escape - the last case of the set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive color case pages, sixteen subtraction problems on each\u003c\/li\u003e\n  \u003cli\u003eThe same five cases again in black and white\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for all five cases\u003c\/li\u003e\n  \u003cli\u003eA color in page for early finishers\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page, print and go with nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eFour digit subtraction with regrouping throughout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue list that solves it. Each clue carries a number, the sixteen problems on the page produce those numbers, and a correct answer knocks a clue out. Work to the last question and a single suspect is left standing. Get one wrong and nothing matches, which sends a student back over their working before you ever see it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReach for this once column subtraction has been taught and simply needs keeping warm, or as review before a test. It fits an animal or zoo unit, a class trip week, and any season from fall through winter to spring. Use it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade, 4th grade and 5th grade. Sixth graders who still need borrowing firmed up get real use out of it, and a strong second grader will manage the early cases with support.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA wrong answer matches no clue, so students catch their own slips\u003c\/li\u003e\n  \u003cli\u003eColor and black and white are both in the download\u003c\/li\u003e\n  \u003cli\u003eA color in page for whoever finishes first\u003c\/li\u003e\n  \u003cli\u003eFive cases covers a full week of centers from one print run\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no prep math activities, and detective themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955365601650,"sku":"4975358","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/4-digit-subtraction-with-regrouping-worksheets-grade-4-4975358.jpg?v=1792460960"},{"product_id":"4-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-christmas-theme","title":"4-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Christmas Theme","description":"\u003cp\u003eChristmas 4 digit addition with regrouping math activities for 3rd grade and 4th grade: five math worksheets in the Mystery Detective format, carrying across four columns throughout. Print and go with full answer keys, no prep, for December math centers, early finishers, homework, morning work and sub plans. Christmas math for 3rd grade and 4th grade that still does real work: 4 digit addition with regrouping, carrying across every column, inside a school Christmas mystery. Teachers use it as a December math center, a homework week or a Christmas math review, and one CSI Mini Mystery Detective download covers the week.\u003c\/p\u003e\n\n\u003cp\u003eThe last week before the break is when this one earns its place, and four digit addition with a secret Santa to find keeps a fourth grade class happily on the page right up to the bell. Every page is self-marking, and one CSI Mini Mystery Detective math case a day covers the week.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWho is Secret Santa\u003c\/strong\u003e - a gift arrives with no name\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Cheer\u003c\/strong\u003e - kindness turning up all December\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSinging Christmas Carols\u003c\/strong\u003e - somebody is singing down the hall\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMissing Xmas Present\u003c\/strong\u003e - a gift goes astray before Christmas\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurkey Trouble\u003c\/strong\u003e - nobody will carve the bird\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eFour digit addition with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eCarrying across four columns, a step up from three digit work\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective puts a crime, a lineup and a page of math in front of your class, and the only way to name the culprit is to get the math right. Each suspect carries a number, each solved question matches one of them, and that suspect is crossed off until a single name remains. Because a wrong sum eliminates the wrong person, these detective activities make students check their work in a way math worksheets cannot.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUse this in December once three digit carrying is secure, when you want the class moving on to four columns and you need it to happen without a fight. The Christmas setting buys you the attention and the math underneath is unchanged. A carry dropped in the thousands column names the wrong suspect, so students go back and check rather than waiting for the page to be graded.\u003c\/p\u003e\n\n\u003cp\u003eTeachers use it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade, where four digit addition sits in the standards. Fifth graders take it as a quick refresher, and second graders manage it once three digit carrying is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMoves the class up to four columns without a fight\u003c\/li\u003e\n  \u003cli\u003eStudents check their own work when the wrong suspect comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep in December\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955376841074,"sku":"5035066","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-4-digit-addition-with-regrouping-grade-4-5035066.jpg?v=1792460828"},{"product_id":"3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-4-christmas-around-the-world","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–4 | Christmas Around the World","description":"\u003cp\u003eChristmas Around the World 3 digit addition math worksheets for 2nd grade and 3rd grade: five Mystery Detective style math cases with regrouping on every page. December math activities, no prep, print and go with full answer keys, for math centers, early finishers, homework, morning work and sub plans. Santa has lost every label, and the story runs across all five pages, so a class comes back for the next one. It is 3 digit addition with regrouping practice for 2nd grade and 3rd grade that pairs with a Christmas Around the World unit, works as December math activities for math centers or morning work, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eOne story across five CSI Mini Mystery Detective math cases is why this set holds a class for a week rather than a lesson, and it pairs with a Christmas Around the World unit without any extra planning. Students add their way to each label, and the marking is student-led, with answer keys included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Present One\u003c\/strong\u003e - Santa has lost every label\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Present Two\u003c\/strong\u003e - a second gift with no name\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Present Three\u003c\/strong\u003e - one more parcel nobody can claim\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Present Four\u003c\/strong\u003e - another gift Santa cannot deliver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Present Five\u003c\/strong\u003e - the last parcel with no name\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eThree digit addition with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eOne running story across all five cases, with a present to deliver in each\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one printed page carrying one crime and one lineup. Each suspect has a number, the crime sheet produces those numbers, and a correct answer removes that suspect until a single name is left. Nothing is laminated, charged or bought, so the math does the whole job, and that is the difference between these detective activities and a page of math worksheets. A case runs about a class period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDecember is the month, and the Christmas Around the World unit is the natural place for it, but what makes this one work is the story running through all five cases. Students finish one present and want the next, which is how you get five pages of carrying practice out of a class that has stopped listening. A dropped carry sends the wrong gift to the wrong person and they spot it.\u003c\/p\u003e\n\n\u003cp\u003eUse it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a whole class, a small group or one child alone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade and 3rd grade, where three digit addition with regrouping sits in the standards. Fourth graders take it as a December refresher, and second graders manage it once two digit carrying is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne story across five cases, so students want the next page\u003c\/li\u003e\n  \u003cli\u003eStudents see a dropped carry when the wrong name comes off the lineup\u003c\/li\u003e\n  \u003cli\u003eNo prep in the last weeks of term\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955440312690,"sku":"5070578","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-around-the-world-3-digit-addition-regrouping-grade-3-5070578.jpg?v=1792460694"},{"product_id":"4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-3-5-valentines-day","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 3–5 | Valentine's Day","description":"\u003cp\u003e4 digit subtraction with regrouping worksheets for 3rd grade and 4th grade, five Valentines Day math activities as Mystery Detective cases, borrowing across four columns throughout. No prep February math activities with full answer keys, print and go, for early finishers, math centers, homework, morning work and sub plans. Flowers left overnight, a card with no signature and a bouquet with the label torn off carry the week, and every answer matches one suspect only and crosses them off the lineup, and a CSI Mini Mystery Detective gets four digit borrowing done in the week nobody wants to do it.\u003c\/p\u003e\n\n\u003cp\u003eFour digit subtraction is the biggest borrowing a third grader meets, and a valentine to trace is what gets five CSI Mini Mystery Detective math cases done in the second half of February. The lineup does the checking, so the marking is student-led and a glance at the key is all you need.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBunch of Flowers\u003c\/strong\u003e - left on the teacher's desk overnight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValentines Day Card\u003c\/strong\u003e - a card with no signature\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValentines Day Flowers\u003c\/strong\u003e - left for the teacher overnight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLove Songs\u003c\/strong\u003e - somebody is singing love songs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMystery Bouquet\u003c\/strong\u003e - flowers with the label torn off\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eFour digit subtraction with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eBorrowing across four columns, which is the hardest subtraction at this level\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a single page case your class cracks with math. The suspects stand in a lineup with a number each, the crime sheet produces those numbers, and a correct answer knocks one suspect out until the last name standing is the culprit. There is no kit and nothing to assemble, so what carries it is the arithmetic, which is what makes detective activities land where math worksheets slide off. One case runs a class period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFour digit borrowing needs far more repetitions than the unit allows, and these five cases supply them in a form third and fourth graders will finish. February gives you a reason to hand it out, and it still works in April when you want the columns automatic before decimals arrive. One wrong borrow names the wrong suspect, so students trace the error back themselves.\u003c\/p\u003e\n\n\u003cp\u003eIt suits test prep, homework, math centers, morning work, early finishers, sub plans, homeschool lessons and spiral review, with a class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade and 4th grade, where four digit subtraction sits in the standards. Fifth graders use it as a fluency refresher, and second graders take it once three digit borrowing is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive full pages on the hardest subtraction third graders meet\u003c\/li\u003e\n  \u003cli\u003eStudents trace a wrong borrow back when the wrong name comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer keys make grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955456237938,"sku":"5148796","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/valentines-day-4-digit-subtraction-with-regrouping-worksheets-5148796.jpg?v=1792461132"},{"product_id":"box-method-multiplication-2-digit-by-2-digit-mystery-detective-worksheets-grades-4-6-monster-theme","title":"Box Method Multiplication (2-Digit by 2-Digit) | Mystery Detective Worksheets | Grades 4–6 | Monster Theme","description":"\u003cp\u003eAre you looking for box method multiplication worksheets with multi-digit multiplication? These engaging 2x2 digit multiplication Mini Mystery Detective packs of math activities are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Multiplication Mystery Detectives are designed to be done in one class period. This pack contains five box-method multiplication Mysteries. At the top of each page is a story to set the scene. Students then answer six questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThese Box Method Multiplication Mystery Detectives\u003c\/strong\u003e are based on monsters and aliens, and students must find the monster among us.\u003c\/p\u003e\n\n\u003cp\u003eThese box method multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 3rd-grade, 4th-grade, and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these box method multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBox Method Multiplication and Division Mystery Detectives:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3x1 Digit Box Method Multiplication Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e2x2 Digit Box Method Multiplication Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eOr as a Bundle:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBox Method Multiplication and Division Bundle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955467805042,"sku":"12562314","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/box-method-multiplication-2x2-digit-worksheets-grade-4-5-12562314.jpg?v=1792461264"},{"product_id":"box-method-multiplication-3-digit-by-1-digit-mystery-detective-worksheets-grades-4-6-monster-theme","title":"Box Method Multiplication (3-Digit by 1-Digit) | Mystery Detective Worksheets | Grades 4–6 | Monster Theme","description":"\u003cp\u003eAre you looking for multi-digit multiplication math activities using the box method? These engaging 3x1 digit multiplication Mini Mystery Detective worksheets are the perfect way to practice.\u003c\/p\u003e\n\n\u003cp\u003eThe Mystery Detectives are designed to be done in one class period. This pack contains five box-method Mysteries. At the top of each page is a story to set the scene. Students then answer six questions to narrow down the suspects and options until they have solved these daily math questions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThese Box Method Mystery Detectives\u003c\/strong\u003e are based on monsters and aliens, and students must find the monster among us.\u003c\/p\u003e\n\n\u003cp\u003eThese box method multiplication worksheets provide an opportunity to practice math and problem-solving skills in a more practical context. The high-interest topics in these mysteries are highly motivating for this age group and will capture their imagination.\u003c\/p\u003e\n\n\u003cp\u003eThese Mystery Detectives are designed for 3rd-grade, 4th-grade, and 5th-grade students. They could also be used with struggling 6th-grade students who need a little extra work and reinforcement in multiplication problems. I also leave some of the mysteries for my sub-teacher.\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are an independent escape room (or crack the code) activity where students identify suspects using puzzles, word problems, and games instead of locks.\u003c\/p\u003e\n\n\u003cp\u003eEnjoy these box method multiplication math worksheets and activities. Remember to follow me by clicking the following link to find my latest resources and receive discounts.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBox Method Multiplication and Division Mystery Detectives:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3x1 Digit Box Method Multiplication Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e2x2 Digit Box Method Multiplication Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e3 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n  \u003cli\u003e4 Digit Box Method Division Mystery Detectives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eOr as a Bundle:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBox Method Multiplication and Division Bundle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more Mini Mystery Detective packs, no-prep math activities, and detective-themed stories for the classroom.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955475439986,"sku":"12566468","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/box-method-multiplication-3-digit-by-1-worksheets-grade-4-5-12566468.jpg?v=1792461264"},{"product_id":"rounding-to-the-nearest-10-and-100-mystery-detective-worksheets-grades-2-4-monster-theme","title":"Rounding to the Nearest 10 and 100 | Mystery Detective Worksheets | Grades 2–4 | Monster Theme","description":"\u003cp\u003eRounding to the nearest 10 and 100 worksheets for 3rd grade and 4th grade, six monster CSI Mini Mystery Detective math cases where every rounded number crosses a suspect off the lineup until one is left. Three cases round to the nearest 10 and three to the nearest 100, so these rounding math activities cover the whole standard and check themselves, because a number rounded the wrong way lands on no suspect. Print and go with full answer keys: no prep math centers, morning work, early finishers, homework and sub plans all year.\u003c\/p\u003e\n\n\u003cp\u003eSix CSI Mini Mystery Detective math cases is more than most rounding packs give you, which means a full week of practice plus one spare, with the nearest 10 and the nearest 100 kept on separate pages so you can teach one before the other. The monsters keep a third grader on the page, and the lineup tells them when to look again before you have to.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Student Monster\u003c\/strong\u003e - something is loose in the school\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMonster Principal\u003c\/strong\u003e - the principal is not himself today\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMonster Teacher\u003c\/strong\u003e - extra schoolwork for everybody\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSchool Imposter Among Us\u003c\/strong\u003e - something got inside the school\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMonster Thief\u003c\/strong\u003e - every school book has gone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Teachers Lunch\u003c\/strong\u003e - the lunch disappears before noon\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSix case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eThree cases round to the nearest 10 and three round to the nearest 100\u003c\/li\u003e\n  \u003cli\u003eNumbers that sit either side of the halfway point, so the rule gets tested properly\u003c\/li\u003e\n  \u003cli\u003eEach answer matches one suspect and no other, so the page checks itself\u003c\/li\u003e\n  \u003cli\u003eA full answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to prepare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is a single page investigation your class solves with math. The lineup of suspects each carry a number, the crime sheet produces those numbers, and a correct answer removes one suspect until a single name is left holding it. There is no kit, no app and nothing to assemble, so the arithmetic does all the work, which is what makes detective activities stick where math worksheets slide off. One case runs about a class period.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eSix cases split across two scopes means you can teach rounding to the nearest 10 one day and the nearest 100 the next without handing out the same page twice. Use it through the rounding unit and again before testing, when students have started rounding to whatever place looks easiest. Rounding to the wrong place crosses off the wrong suspect, so the habit gets caught on the page.\u003c\/p\u003e\n\n\u003cp\u003eIt covers test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a whole class, a small group or one student alone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 3rd grade, where rounding to the nearest 10 and 100 sits in the standards, and used with 4th graders as a warm up before rounding to larger places. Second graders take the nearest 10 cases once place value to 100 is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSix cases in one download, split so you can teach the two scopes apart\u003c\/li\u003e\n  \u003cli\u003eStudents catch their own rounding slips when the wrong suspect comes off\u003c\/li\u003e\n  \u003cli\u003eNo prep, and the answer keys make grading quick\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955485237618,"sku":"9112300","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/rounding-to-the-nearest-10-and-100-worksheets-3rd-grade-9112300.jpg?v=1792461951"},{"product_id":"perimeter-customary-metric-mystery-detective-worksheets-grades-3-5-printable-detective-pack","title":"Perimeter (Customary \u0026 Metric) | Mystery Detective Worksheets | Grades 3–5 | Printable Detective Pack","description":"\u003cp\u003ePerimeter worksheets for 2nd grade, 3rd grade and 4th grade, set out as five printable Mystery Detective math cases in customary and metric units. Completely no prep math activities for math centers, morning work, early finishers, homework and sub plans, print and go with answer keys for every page. One download holds the five cases in inches and feet, the same five again in centimeters and meters, a full black and white set, and a color in page for whoever finishes first.\u003c\/p\u003e\n\n\u003cp\u003ePerimeter lands in the middle of the geometry unit, and this is the set to hand out once the rule is taught and a class simply needs the reps. A correct measurement knocks a clue out, so the page tells a student how they are doing before it tells you. Having both measurement systems in the one file means the same five cases work whichever units your curriculum uses.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMystery Chocolates - who left the box\u003c\/li\u003e\n  \u003cli\u003eShowing Mindfulness - a secret kind deed\u003c\/li\u003e\n  \u003cli\u003eMissing Shapes - the teacher's shapes vanish\u003c\/li\u003e\n  \u003cli\u003e2D and 3D Shape Songs - a singer nobody saw\u003c\/li\u003e\n  \u003cli\u003eMissing Library Book - the book never came back\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive color case pages, twelve shapes to measure on each\u003c\/li\u003e\n  \u003cli\u003eThe same five cases again in centimeters and meters\u003c\/li\u003e\n  \u003cli\u003eEvery case a second time in black and white\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case, both unit sets\u003c\/li\u003e\n  \u003cli\u003eA color in page for early finishers\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page, print and go with nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eTriangles, squares, rectangles and irregular shapes throughout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue list that solves it. Each clue carries a measurement, the twelve shapes on the page produce those measurements, and a correct perimeter knocks a clue out. Work to the last shape and a single suspect is left standing. Get one wrong and nothing matches, which sends a student back over their working before you ever see it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReach for this once perimeter has been taught and the class needs practice that holds their attention, and again later in the year when geometry needs keeping warm. It suits a whole class, a small group, or the two or three who have finished everything else, and the answer keys mean it marks itself. Because both measurement systems sit in the one download, it also covers a class that meets metric in one unit and customary in another. Use it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade, 3rd grade and 4th grade. Fifth graders who still need perimeter firmed up get plenty out of it, and confident second graders manage it with a little support.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA correct perimeter matches a clue, so students check their own work\u003c\/li\u003e\n  \u003cli\u003eCustomary and metric versions are both in the download\u003c\/li\u003e\n  \u003cli\u003eColor and black and white sets, however you like to print\u003c\/li\u003e\n  \u003cli\u003eA color in page for whoever finishes first\u003c\/li\u003e\n  \u003cli\u003eFive cases covers a week of geometry practice\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no prep math activities, and detective themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955544777074,"sku":"5304154","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/perimeter-worksheets-2nd-3rd-4th-grade-math-5304154.jpg?v=1792461820"},{"product_id":"3-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-2-4-christmas-theme","title":"3-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 2–4 | Christmas Theme","description":"\u003cp\u003eChristmas 3 digit subtraction with regrouping worksheets for 2nd grade and 3rd grade: five printable math activities, Mystery Detective style, borrowing across the columns on every page. No prep, print and go, full answer keys, for morning work, math centers, early finishers, homework and sub plans through December. December is a good month for subtraction with regrouping practice, and this pack gives 2nd grade and 3rd grade students a week of it inside a school Christmas story. It works as Christmas math activities for math centers, morning work or the class party week, and a CSI Mini Mystery Detective marks itself.\u003c\/p\u003e\n\n\u003cp\u003eBorrowing fits the week of the class party perfectly when there is a reason to care, and an unsigned box of chocolates on the desk is that reason. The pages mark themselves as students cross the suspects off. It is math practice and a Mystery Detective case in one.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass Secret Santa\u003c\/strong\u003e - a gift with no label\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Chocolates\u003c\/strong\u003e - chocolates on the desk, unsigned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Carols\u003c\/strong\u003e - singing from the music room\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Presents\u003c\/strong\u003e - who unwraps theirs first\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Good Deeds\u003c\/strong\u003e - kindness and nobody owning up\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive Christmas cases, each a page of 3 digit subtraction with regrouping\u003c\/li\u003e\n  \u003cli\u003eSixteen questions per case, laid out in columns ready to borrow\u003c\/li\u003e\n  \u003cli\u003eClue lists down the side of every page, so one answer removes one clue\u003c\/li\u003e\n  \u003cli\u003eA black and white copy of all five cases for everyday printing\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003ePrint and go: no cutting, no laminating, nothing to set up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mini Mystery Detective is one page carrying a crime, a short list of clues and the questions that eliminate them. Every clue has a number, the subtraction produces those numbers, and a correct answer crosses that clue off until only the solution is left. Nothing is cut, laminated or charged. The borrowing has to be right for the elimination to work, which is what makes a mistake show.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep this one for the fortnight before the break, when the timetable is broken up by rehearsals and parties and a lesson has to run on its own. It is also the set to use straight after the holidays, because borrowing across columns is the first thing a class forgets. Every instruction is printed on the sheet, so a relief teacher can hand it out with no briefing.\u003c\/p\u003e\n\n\u003cp\u003eUse it for morning work, math centers, early finishers, homework, class parties, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade and 3rd grade. Second graders meet borrowing across columns here, and third graders use the cases as a December refresher before four digit subtraction.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eStudents keep going in the week nothing else holds them\u003c\/li\u003e\n  \u003cli\u003ePrint and hand out, with no preparation at all\u003c\/li\u003e\n  \u003cli\u003eFive cases carries the whole fortnight before the break\u003c\/li\u003e\n  \u003cli\u003eSuits a whole class, a small group, partners or one student\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955548021106,"sku":"5027667","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-3-digit-subtraction-with-regrouping-worksheets-2nd-3rd-grade-5027667.jpg?v=1792460826"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/collections\/Reading_Mystery_8a727053-b848-4b33-9392-5f8ec582c67d.png?v=1788168442","url":"https:\/\/kiwilandeducation.com\/collections\/mystery-detective.oembed","provider":"Kiwiland Education","version":"1.0","type":"link"}