{"title":"Grade 5 Math: Number \u0026 Operations in Base Ten","description":"\u003cp\u003e5th grade math worksheets and activities for number \u0026amp; operations in base ten (Common Core 5.NBT): printable mystery worksheets, CSI cases and digital escape rooms.\u003c\/p\u003e","products":[{"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":"decimals-csi-mystery-alien-invasion-worksheets","title":"Decimals CSI Mystery Worksheets | Grades 4–7 | Alien Invasion","description":"\u003cp\u003eNeed an engaging way to review \u003cstrong\u003edecimal operations\u003c\/strong\u003e in your classroom? This printable \u003cstrong\u003eCSI Mystery Detective\u003c\/strong\u003e, *Alien Invasion*, targets key \u003cstrong\u003e5th grade math skills\u003c\/strong\u003e, including \u003cstrong\u003eadding, subtracting, multiplying, and rounding decimals to the hundredths place\u003c\/strong\u003e. It's an ideal resource for \u003cstrong\u003edecimal review\u003c\/strong\u003e, \u003cstrong\u003emath test prep\u003c\/strong\u003e, or \u003cstrong\u003eindependent math practice\u003c\/strong\u003e during any part of the year.\u003c\/p\u003e\n\n\u003cp\u003eStudents solve a series of decimal-based puzzles and eliminate suspects to crack the case of the alien invasion. Whether you're teaching decimals for the first time or reinforcing fluency after a break, this no-prep mystery activity will keep students focused and excited to solve the challenge.\u003c\/p\u003e\n\n\u003cp\u003eUse this decimal case in math centers, small groups, whole-class settings, or as a homeschool supplement. It's perfect for \u003cstrong\u003eback to school\u003c\/strong\u003e, \u003cstrong\u003eseasonal spiral review\u003c\/strong\u003e, and even those tough-to-fill days before or after school holidays.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAddition and subtraction with decimals to the hundredths\u003c\/li\u003e\n  \u003cli\u003eMultiplication of decimals\u003c\/li\u003e\n  \u003cli\u003eRounding decimals to the nearest hundredth\u003c\/li\u003e\n  \u003cli\u003ePuzzle-style worksheets and suspect list\u003c\/li\u003e\n  \u003cli\u003eColor and black-and-white versions\u003c\/li\u003e\n  \u003cli\u003eAnswer key included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCSI Mystery Detective packs are independent escape room or crack-the-code types of fun math activities where students identify suspects using puzzles and word problems instead of locks.\u003c\/strong\u003e This Alien Invasion edition is a great way to boost engagement while strengthening key math concepts.\u003c\/p\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow \u003cstrong\u003eKiwiland Education\u003c\/strong\u003e to discover more \u003cstrong\u003edecimal review games\u003c\/strong\u003e, \u003cstrong\u003eCSI Mystery Detective printables and math worksheets\u003c\/strong\u003e, and printable escape-style activities for your classroom.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":52183424598386,"sku":"10876032","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/decimals-5th-grade-1-10876032.jpg?v=1792459542"},{"product_id":"decimals-multiplication-csi-mystery-worksheets-grades-4-6-aliens-in-the-attic","title":"Decimals \u0026 Multiplication CSI Mystery Worksheets | Grades 4–6 | Aliens in the Attic","description":"\u003cp\u003eCSI Mystery Detective decimals work for 5th grade and 6th grade: adding, subtracting and multiplying decimals, and comparing which is greater, on one set of CSI math worksheets. It covers adding and subtracting decimals, then pushes into multiplying decimals with large answers, a strong March activity ahead of testing season. Something has lived in the attic a while, and its decimals are the only clue to how many eyes and arms it has. Color and black-and-white pages are both included, so it goes straight from printer to desk. Students compare, add along a path and color a multiplication trail, crossing off a suspect per correct answer, with answer keys to close the mystery.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Case: Aliens in the Attic\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne stormy night you go to bed early with a book, listening to the rain lashing the window and the trees thrashing in the wind. Then, over the top of the storm, something moves in the attic. It is not the wind, and it is not the house settling. Whatever is up there has been there a while, and the only way to work out what it is - and how many eyes and arms it has - is to solve the decimals it left behind.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComparing decimals to decide which is greater and which is lesser\u003c\/li\u003e\n  \u003cli\u003eAdding decimals along a path where the running total settles the clue\u003c\/li\u003e\n  \u003cli\u003eMultiplying decimals, including problems with large answers\u003c\/li\u003e\n  \u003cli\u003eSubtracting decimals to check a suspect off the line-up\u003c\/li\u003e\n  \u003cli\u003eA color-the-arrow trail that only works if the multiplication is right\u003c\/li\u003e\n  \u003cli\u003eFull color and black-and-white versions of every page\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for the whole case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mystery Detective Case?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA CSI Mystery Detective case turns a page of math into evidence. Students solve, each correct answer strikes one name off the suspect list, and the case closes on the last one standing. There is nothing to unlock, download or prepare - it is a math escape room made of paper. Detective activities also police themselves in a way ordinary math worksheets cannot: an error leaves a culprit nobody can arrest, so the class goes back over it. A math activity that carries a lesson, a center rotation, or a sub plan.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDecimal review before or after a unit test\u003c\/li\u003e\n  \u003cli\u003eMath centers, early finishers and independent work\u003c\/li\u003e\n  \u003cli\u003eEmergency sub plans that run themselves\u003c\/li\u003e\n  \u003cli\u003eEnd of year review, when attention is thin and the work still has to happen\u003c\/li\u003e\n  \u003cli\u003eWhole-class detective sessions, small groups or partner work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for 5th grade, and it carries comfortably into 6th grade. Fourth graders who have met decimals can manage it with support, usually working in pairs on the multiplication pages. It also gives older students who need decimal review something to work on that does not look like remedial work.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - print and hand out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking by design, because a wrong answer breaks the deduction\u003c\/li\u003e\n  \u003cli\u003eDecimal practice students will actually finish\u003c\/li\u003e\n  \u003cli\u003eWorks as a whole lesson, a center, or a filler for an awkward afternoon\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education for new detective cases, seasonal math activities and updates on discounts and new releases.\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":61951264620914,"sku":"4016786","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/aliens-in-the-attic-csi-mystery-detective-decimals-grades-4-6-4016786.jpg?v=1792459542"},{"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":"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":"multiplying-decimals-mystery-detective-worksheets-grades-5-6-printable-detective-pack","title":"Multiplying Decimals | Mystery Detective Worksheets | Grades 5–6 | Printable Detective Pack","description":"\u003cp\u003eMultiplying decimals for 5th grade and 6th grade: five printable CSI Mini Mystery Detective math cases where students multiply on the crime sheet, match the product to a suspect and cross that name off until the culprit is left. These decimal multiplication worksheets are written to 5.NBT.7 and every answer matches exactly one suspect, so a decimal point in the wrong place shows up straight away. No prep, print and go, full answer keys: math activities for the decimals unit, math centers, early finishers, homework and sub plans, any month of the year.\u003c\/p\u003e\n\n\u003cp\u003eMost classes meet multiplying decimals twice, once in the unit and once in the weeks before testing, and five separate CSI Mini Mystery Detective math cases means you are not handing out the same page both times. The lineup does the checking, so students notice a misplaced decimal point on their own, and the answer keys keep the marking short.\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 Art Gallery\u003c\/strong\u003e - a famous painting is stolen\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\u003eChampionship Rugby Ball\u003c\/strong\u003e - stolen the night before the final\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Book Shop\u003c\/strong\u003e - a book walks out of the shop\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\u003eMultiplying decimals on every page, written to 5.NBT.7\u003c\/li\u003e\n  \u003cli\u003eDecimals multiplied by whole numbers and by other decimals, so place value is tested both ways\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, and the only way through it is the math. Work the questions, match each answer to the suspect wearing that number, cross that suspect off, and keep going until one name has not been ruled out. Because the elimination depends on getting the arithmetic right, these detective activities do something a page of math worksheets cannot: students catch their own mistakes. One case fills a class period, with no prep and nothing to assemble.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBring this out in the middle of the decimals unit, once students can multiply but are still putting the point in the wrong place. That is exactly the error a normal worksheet hides, because the digits look right and the answer is out by a factor of ten. Here a misplaced decimal point crosses off the wrong suspect, so students find the slip themselves and go back to the place value rather than the digits.\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 alone.\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 decimal division and percentages.\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\u003eEvery question is about where the decimal point lands, which is where students go wrong\u003c\/li\u003e\n  \u003cli\u003eStudents catch their own errors when the wrong suspect is crossed 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":61955573580146,"sku":"10214844","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/multiplying-decimals-worksheets-5th-grade-5-nbt-7-10214844.jpg?v=1792461674"},{"product_id":"long-division-4-digit-no-remainders-mystery-detective-worksheets-grades-4-6-printable-detective-pack","title":"Long Division (4-Digit, No Remainders) | Mystery Detective Worksheets | Grades 4–6 | Printable Detective Pack","description":"\u003cp\u003eLong division worksheets for 4th grade and 5th grade, with 4 digit dividends, single digit divisors and no remainders, so every quotient lands on a suspect exactly. Five CSI Mini Mystery Detective math cases where students work each division and cross a name off the lineup until the culprit is left, which makes the set self-checking math activities for the division unit. No prep, print and go, full answer keys, for math centers, early finishers, homework, morning work, test prep and sub plans, any month of the year.\u003c\/p\u003e\n\n\u003cp\u003eLong division is the topic that rewards getting all the way down the page, and a CSI Mini Mystery Detective math case file is the reason students do, because the culprit is on the last question. Each quotient matches one name, so the page is self-marking, and the answer key behind every sheet is a quick glance for you.\u003c\/p\u003e\n\u003cp\u003eEach case has its own villain lineup, with names like Painting Pirate, Dewey Demon and Heist Master. Students divide, find the suspect whose number matches the quotient, and cross that suspect off. If a step goes wrong, the quotient won't be on the list, which sends them back to check their working.\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 Art Gallery Theft\u003c\/strong\u003e - a prize painting goes missing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChampionship Soccer Ball\u003c\/strong\u003e - stolen before the big game\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRare Book Disappearance\u003c\/strong\u003e - the library's last copy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExperimental Lab\u003c\/strong\u003e - a science lab sabotaged\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Bank Vault\u003c\/strong\u003e - the bank vault broken into\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, each with its own suspect lineup\u003c\/li\u003e\n  \u003cli\u003eLong division with 4 digit dividends and 1 digit divisors\u003c\/li\u003e\n  \u003cli\u003eNo remainders\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\u003eEvery case is a single page. There's a crime at the top, division problems below it and a lineup of villains, each with a number. Students cross off the villain that matches each answer. The one left over 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\u003eThis set is for the point in the division unit when the standard algorithm has been taught and students are ready to use it without help. Because every answer is exact, the focus stays on dividing, bringing down and subtracting in the right order. It also works for test prep, 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 4th grade and 5th grade. 6th graders can use it for fluency before remainders and decimal quotients.\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 remainders to deal with\u003c\/li\u003e\n  \u003cli\u003eEach case has a different crime\u003c\/li\u003e\n  \u003cli\u003eNothing to prep\u003c\/li\u003e\n  \u003cli\u003eStudents can see when a quotient is wrong\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":61955625353586,"sku":"9433663","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/long-division-worksheets-4-digit-dividend-no-remainders-csi-mystery-9433663.jpg?v=1792462504"},{"product_id":"adding-subtracting-decimals-digital-escape-room-math-word-problems-grades-4-7-thanksgiving","title":"Adding \u0026 Subtracting Decimals Digital Escape Room | Math Word Problems | Grades 4–7 | Thanksgiving","description":"\u003cp\u003e\u003cstrong\u003eEvery decimal lined up is one step closer to the exit\u003c\/strong\u003e — this Adding \u0026amp; Subtracting Decimals Digital Escape Room turns Thanksgiving word problems into a chain of codes students unlock by computing carefully and escaping.\u003c\/p\u003e\u003cp\u003eIt's fully digital and self-checking, so wrong answers won't open the lock and there's nothing for you to grade. Built for Grades 4–7 with a Thanksgiving theme. Open it in any browser — no app, login, or subscription.\u003c\/p\u003e\u003ch3\u003eQuick details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade levels:\u003c\/strong\u003e 4–7 (adding and subtracting decimals)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Interactive, browser-based digital escape room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResource type:\u003c\/strong\u003e No-prep, self-checking math activity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill focus:\u003c\/strong\u003e Decimal addition and subtraction in word problems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTech needed:\u003c\/strong\u003e Any device with a web browser\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe mission\u003c\/h3\u003e\u003cp\u003eThe Thanksgiving budget is locked behind a series of decimal word problems. Students must add and subtract their way to each answer — solve correctly and the codes appear, one puzzle at a time.\u003c\/p\u003e\u003ch3\u003eHow the escape room works\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOpen the private link in any browser — no app, login, or subscription\u003c\/li\u003e\n\u003cli\u003eSolve each decimal word problem to reveal a code\u003c\/li\u003e\n\u003cli\u003eEnter the code to unlock the next stage — wrong answers won't open it\u003c\/li\u003e\n\u003cli\u003eThe room self-checks, so students get instant feedback\u003c\/li\u003e\n\u003cli\u003eCrack the final code to escape\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAn interactive digital escape room hosted on a private site\u003c\/li\u003e\n\u003cli\u003eAnimated, self-checking puzzles with randomized answers for replayability\u003c\/li\u003e\n\u003cli\u003eNo Boom Cards, Google Slides, logins, or subscriptions\u003c\/li\u003e\n\u003cli\u003eA PDF with your private access link to share via Google Classroom, email, or your LMS\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSkills covered\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdding and subtracting decimals\u003c\/li\u003e\n\u003cli\u003eLining up place value and regrouping\u003c\/li\u003e\n\u003cli\u003eSolving multi-step word problems\u003c\/li\u003e\n\u003cli\u003eApplying decimal operations to real-world money and measurement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest used for\u003c\/h3\u003e\u003cp\u003eMath centers, tech time, early finishers, sub plans, Thanksgiving and fall review, test prep, homeschool, and distance learning.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61957943656818,"sku":"10474254","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/thanksgiving-adding-subtracting-decimals-digital-escape-room-1.jpg?v=1781988410"},{"product_id":"multiplying-decimals-winter-digital-escape-room-math-activity-grades-5-7","title":"Multiplying Decimals Winter Digital Escape Room | Math Activity | Grades 5–7","description":"\u003cp\u003e\u003cstrong\u003eLock the lesson and hand over a link.\u003c\/strong\u003e Your students step into a frozen winter world where every icy lock hides a decimal multiplication problem. Solve it, place the decimal point just right, reveal the code, and work your way out into the snow.\u003c\/p\u003e\n\u003cp\u003eIt's a no-prep, self-checking review game that runs in any browser — no apps, no logins, no printing. Just send the link and let them race the clock.\u003c\/p\u003e\n\u003ch3\u003eQuick details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade levels:\u003c\/strong\u003e 5–7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Interactive, browser-based digital escape room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResource type:\u003c\/strong\u003e No-prep, self-checking review game\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill focus:\u003c\/strong\u003e Multiplying decimals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTech needed:\u003c\/strong\u003e Any device with a web browser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe mission\u003c\/h3\u003e\n\u003cp\u003eA blizzard has sealed the mountain lodge. The only way out is to multiply each set of decimals, collect every code, and unlock the final door before the storm closes in.\u003c\/p\u003e\n\u003ch3\u003eHow the escape room works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOpen the private link — no app or login required.\u003c\/li\u003e\n\u003cli\u003eWork through a series of animated decimal-multiplication challenges.\u003c\/li\u003e\n\u003cli\u003eEach correct answer reveals a code that unlocks the next room.\u003c\/li\u003e\n\u003cli\u003eWrong answers won't open the lock, so the room checks itself.\u003c\/li\u003e\n\u003cli\u003eCrack the final code to escape and win.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAn interactive escape room hosted on a private site — animated, with randomized answers for replayability.\u003c\/li\u003e\n\u003cli\u003eNo Boom Cards, Google Slides, logins, or subscriptions.\u003c\/li\u003e\n\u003cli\u003eA PDF containing your private access link to share via Google Classroom, email, or any LMS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSkills covered\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMultiplying decimals by whole numbers and decimals\u003c\/li\u003e\n\u003cli\u003ePlacing the decimal point correctly in a product\u003c\/li\u003e\n\u003cli\u003eDecimal computation fluency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest used for\u003c\/h3\u003e\n\u003cp\u003eMath centers, tech time, early finishers, sub plans, homeschool, test prep, review days, and distance learning.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61959770702194,"sku":"10781294","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/winter-multiplying-decimals-digital-escape-room-1.jpg?v=1782000846"},{"product_id":"adding-subtracting-decimals-word-problems-christmas-digital-escape-room-math-activity-grades-5-7","title":"Adding \u0026 Subtracting Decimals Word Problems Christmas Digital Escape Room | Math Activity | Grades 5-7","description":"\u003cp\u003e\u003cstrong\u003eLock the lesson and hand over a link.\u003c\/strong\u003e Your students step into a festive Christmas adventure where every locked door hides a decimal word problem. Add and subtract carefully, reveal the code, and unlock your way to the exit before the holidays.\u003c\/p\u003e\n\u003cp\u003eIt's a no-prep, self-checking review game that runs in any browser — no apps, no logins, no printing. Just send the link and let them race the clock.\u003c\/p\u003e\n\u003ch3\u003eQuick details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade levels:\u003c\/strong\u003e 5-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Interactive, browser-based digital escape room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResource type:\u003c\/strong\u003e No-prep, self-checking review game\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill focus:\u003c\/strong\u003e Adding and subtracting decimals in word problems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTech needed:\u003c\/strong\u003e Any device with a web browser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe mission\u003c\/h3\u003e\n\u003cp\u003eSanta's gift budget is in chaos and every receipt is a decimal word problem. Add and subtract carefully, collect the codes, and balance the books before the workshop closes for the night.\u003c\/p\u003e\n\u003ch3\u003eHow the escape room works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOpen the private link — no app or login required.\u003c\/li\u003e\n\u003cli\u003eWork through a series of animated decimal word problem challenges.\u003c\/li\u003e\n\u003cli\u003eEach correct answer reveals a code that unlocks the next room.\u003c\/li\u003e\n\u003cli\u003eWrong answers won't open the lock, so the room checks itself.\u003c\/li\u003e\n\u003cli\u003eCrack the final code to escape and win.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAn interactive escape room hosted on a private site — animated, with randomized answers for replayability.\u003c\/li\u003e\n\u003cli\u003eNo Boom Cards, Google Slides, logins, or subscriptions.\u003c\/li\u003e\n\u003cli\u003eA PDF containing your private access link to share via Google Classroom, email, or any LMS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSkills covered\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdding and subtracting decimals to the hundredths\u003c\/li\u003e\n\u003cli\u003eSolving multi-step decimal word problems\u003c\/li\u003e\n\u003cli\u003eLining up place value and the decimal point\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest used for\u003c\/h3\u003e\n\u003cp\u003eHoliday math centers, tech time, early finishers, sub plans, homeschool, test prep, review days, and distance learning.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61959800684914,"sku":"10607563","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-decimals-word-problems-digital-escape-room-1.jpg?v=1782004439"},{"product_id":"multiplying-decimals-summer-digital-escape-room-math-activity-grades-5-7","title":"Multiplying Decimals Digital Escape Room | Math Activity | Grades 5–7 | Spy Mission","description":"\u003cp\u003eRecruit your students as secret agents! This animated, self-checking digital escape room turns multiplying decimals into a Top Secret spy mission your students will race to crack.\u003c\/p\u003e\u003cp\u003eNo printing, no logins, no prep — just send the private link and let your agents solve their way out.\u003c\/p\u003e\u003ch3\u003eQuick details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade levels:\u003c\/strong\u003e 5–7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e interactive, browser-based escape room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResource type:\u003c\/strong\u003e no-prep digital review game\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill focus:\u003c\/strong\u003e multiplying decimals and placing the decimal point correctly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTech needed:\u003c\/strong\u003e any device with a web browser\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe mission\u003c\/h3\u003e\u003cp\u003eAgent X is on the trail of the Phantom Pack, and their stolen plans are locked behind decimal codes. Multiply the decimals correctly to crack each code and move deeper into the mission — one misplaced decimal point and the door stays sealed.\u003c\/p\u003e\u003ch3\u003eHow the escape room works\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOpen the private link — no app, no login, no account.\u003c\/li\u003e\n\u003cli\u003eSolve each animated challenge.\u003c\/li\u003e\n\u003cli\u003eA correct answer reveals the next code; wrong answers won't unlock the door.\u003c\/li\u003e\n\u003cli\u003eCrack the final code to complete the mission and escape.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAn interactive escape room hosted on a private site (animated, with randomized answers for replayability).\u003c\/li\u003e\n\u003cli\u003eNo Boom Cards, Google Slides, logins, or subscriptions required.\u003c\/li\u003e\n\u003cli\u003eA PDF containing the private access link to share via Google Classroom, email, or any LMS.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSkills covered\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMultiplying decimals by whole numbers and decimals\u003c\/li\u003e\n\u003cli\u003ePlacing the decimal point correctly\u003c\/li\u003e\n\u003cli\u003eEstimating decimal products\u003c\/li\u003e\n\u003cli\u003eSolving decimal word problems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest used for\u003c\/h3\u003e\u003cp\u003eMath centers, tech time, early finishers, review, sub plans, homeschool, test prep, and distance learning.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61962193535346,"sku":"11633715","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/original-11633715-1.jpg?v=1782108072"},{"product_id":"multiplying-decimals-csi-mystery-worksheets-grades-4-7-zombie-apocalypse","title":"Multiplying Decimals CSI Mystery Worksheets | Grades 4–7 | Zombie Apocalypse","description":"\u003cp\u003eHalloween zombie apocalypse CSI math worksheets on multiplying decimals, built for October and the week when the outbreak reaches the classroom. One of the things outside used to be someone your students knew, and this CSI Mystery Detective multiplication mystery for 5th grade and 6th grade identifies it through the numbers it left behind. Students multiply decimals, work multi digit multiplication, and add and subtract large numbers, and every correct answer crosses one suspect off the line-up until a single description fits. Full color and black-and-white pages with answer keys, ready to print and hand straight to desks. They also color the right arrow forward and draw a line through the letter that matters.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Case: Zombie Apocalypse\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe outbreak started at school and finished it. Friends, family and teachers have all gone the same way, and the survivors are barricaded into what is left of the building. One of the things outside used to be someone your students knew. Identifying which one means working the decimals it left behind - how big it is, what it was, how long it has been out there - until only one description fits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMultiplying decimals, with answers running into the thousands\u003c\/li\u003e\n  \u003cli\u003eMulti-digit multiplication used to color the correct arrow forward\u003c\/li\u003e\n  \u003cli\u003eA matching page where the line drawn passes through the letter that matters\u003c\/li\u003e\n  \u003cli\u003eAddition with large multi-digit numbers\u003c\/li\u003e\n  \u003cli\u003eAddition and subtraction along a path where the final total settles the clue\u003c\/li\u003e\n  \u003cli\u003eFull color and black-and-white versions of every page\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for the whole case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mystery Detective Case?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEvery CSI Mystery Detective case runs on the same engine: solve, eliminate, repeat. The class is handed a crime and a page of math worksheets, and the answers cross suspects off one by one until a single name remains. It is a math escape room without locks, apps or preparation of any kind. Because the deduction only closes on correct arithmetic, detective activities get checked by the student rather than by you. As a math activity it fills a lesson, sits in math centers, or runs itself as a sub plan.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDecimal review before or after a unit test\u003c\/li\u003e\n  \u003cli\u003eHalloween week in October, when a normal worksheet will not hold them\u003c\/li\u003e\n  \u003cli\u003eMath centers, early finishers and independent work\u003c\/li\u003e\n  \u003cli\u003eEmergency sub plans that run themselves\u003c\/li\u003e\n  \u003cli\u003eEnd of year review, when attention is thin and the work still has to happen\u003c\/li\u003e\n  \u003cli\u003eWhole-class detective sessions, small groups or partner work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for 5th grade, and it carries into 6th and 7th grade for students who need decimal and multiplication review. Fourth graders who have already met decimals can manage it with support, usually working in pairs on the multiplication pages. It also gives older students who are behind on decimal place value something to work on that does not look like remedial work.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - print and hand out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking by design, because a wrong answer breaks the deduction\u003c\/li\u003e\n  \u003cli\u003eDecimal practice students will actually finish\u003c\/li\u003e\n  \u003cli\u003eWorks as a whole lesson, a center, or a filler for an awkward afternoon\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education for new detective cases, seasonal math activities and updates on discounts and new releases.\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":61981864460658,"sku":"3979483","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/zombie-apocalypse-csi-mystery-detective-decimals-grades-4-7-3979483.jpg?v=1792460001"},{"product_id":"3-digit-by-2-digit-multiplication-mystery-detective-worksheets-grades-3-6-summer-theme","title":"3-Digit by 2-Digit Multiplication | Mystery Detective Worksheets | Grades 3–6 | Summer Theme","description":"\u003cp\u003eLooking for Summer Math and engaging 3-digit by 2-digit multiplication activities and worksheets? This Summer Mini Mystery Detective is a fun, low-prep math activity where students solve 3x2 digit multiplication problems to eliminate suspects and crack the case. Perfect for math centers, whole-class lessons, early finishers, enrichment, end-of-year review, or summer school, this mystery keeps students motivated while practicing essential multiplication skills.\u003c\/p\u003e\n\n\u003cp\u003eStudents work through a series of carefully structured multiplication problems. Each correct answer helps them narrow down the suspect list until only one culprit remains. The mystery format encourages accuracy, perseverance, and problem-solving while reinforcing multiplication strategies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Are Mystery Detectives?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMystery Detectives are interactive math activities that combine computation with deduction. Students solve math problems and use their answers to eliminate choices until the mystery is solved. These activities are designed to be engaging, easy to implement, and suitable for independent work, partner work, or small groups within a single class period.\u003c\/p\u003e\n\n\u003cp\u003eThis resource includes 5 different summer-themed Mystery Detectives focused on 3-digit by 2-digit multiplication. Complete answer keys are included for all mysteries to support quick and easy checking.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSkills Covered\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3-digit by 2-digit multiplication\u003c\/li\u003e\n  \u003cli\u003eMultiplication with regrouping\u003c\/li\u003e\n  \u003cli\u003eProblem solving and logical reasoning\u003c\/li\u003e\n  \u003cli\u003eAccuracy and mathematical reasoning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMore engaging than traditional multiplication worksheets\u003c\/li\u003e\n  \u003cli\u003eEncourages careful work and self-checking\u003c\/li\u003e\n  \u003cli\u003eEasy to use in centers, small groups, or independently\u003c\/li\u003e\n  \u003cli\u003eSuitable for review, enrichment, or fast finishers\u003c\/li\u003e\n  \u003cli\u003eLow-prep and print-ready\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuggested Uses\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMath centers and rotations\u003c\/li\u003e\n  \u003cli\u003eWhole-class practice\u003c\/li\u003e\n  \u003cli\u003eSmall-group instruction\u003c\/li\u003e\n  \u003cli\u003eEarly finisher activities\u003c\/li\u003e\n  \u003cli\u003eEnd-of-year and summer review\u003c\/li\u003e\n  \u003cli\u003eHomeschool worksheets and activities\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 explore more Mystery Detectives and receive updates, discounts, and new classroom resources.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62033592451442,"sku":"16970708","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-by-2-digit-multiplication-summer-mystery-detective-16970708.jpg?v=1792460827"},{"product_id":"writing-decimals-to-thousandths-mystery-detective-worksheets-grades-4-6-word-form","title":"Writing Decimals to Thousandths | Mystery Detective Worksheets | Grades 4–6 | Word Form","description":"\u003cp\u003eDecimal word form activities, reading and writing decimals to thousandths, and decimal place value worksheets for 4th grade, 5th grade, and 6th grade are all included in this science lab Mini Mystery Detective. Students turn decimals written out in words into digits to crack five detective cases - perfect for math centers, morning work, early finishers, substitute days, homework, spiral review, and test prep. Completely no prep - just print and go.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWriting decimals to tenths from their number names: four and seven tenths, ninety-two and three tenths\u003c\/li\u003e\n  \u003cli\u003eMoving on to hundredths: nineteen and forty-two hundredths, five hundred eight and sixty-four hundredths\u003c\/li\u003e\n  \u003cli\u003eReading decimals to thousandths: forty and five hundred eighty-six thousandths\u003c\/li\u003e\n  \u003cli\u003eHearing the place value in the name - tenths, hundredths or thousandths - and using it to decide how many digits sit after the decimal point\u003c\/li\u003e\n  \u003cli\u003eHolding zero as a place holder when the number name skips a place: five and six thousandths is 5.006, not 5.6\u003c\/li\u003e\n  \u003cli\u003eKeeping the whole-number part and the decimal part apart when both are read out in words\u003c\/li\u003e\n  \u003cli\u003eA final mixed case that jumps between tenths, hundredths and thousandths with no warning\u003c\/li\u003e\n  \u003cli\u003eLogical reasoning and deductive elimination as students rule each suspect out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking answer keys for every case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFive science lab cases to crack: the lab scale, the beaker swap, the seed trial, the rock samples, and the field notes. Answer keys included for every case.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is a Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit. Every suspect wears an ID badge with a number on it, so a correct answer eliminates a suspect and the last one standing is the villain. Skill practice plus critical thinking in one engaging, self-checking worksheet set.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMath centers and rotations\u003c\/li\u003e\n  \u003cli\u003eMorning work and bell ringers\u003c\/li\u003e\n  \u003cli\u003eEarly finishers\u003c\/li\u003e\n  \u003cli\u003eSubstitute and relief days\u003c\/li\u003e\n  \u003cli\u003eHomework\u003c\/li\u003e\n  \u003cli\u003eSpiral review and test prep\u003c\/li\u003e\n  \u003cli\u003eSmall-group intervention\u003c\/li\u003e\n  \u003cli\u003eWhole-class warm-ups\u003c\/li\u003e\n  \u003cli\u003eA cross-curricular tie-in during a science unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for 4th, 5th and 6th graders, with 5th grade decimal place value at its core. Also beneficial for struggling middle school students who need extra practice reading decimals, and advanced 4th graders ready for a challenge.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love Mystery Detectives\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - just print and hand out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking - a wrong answer leaves the wrong suspect standing, so students catch their own mistakes\u003c\/li\u003e\n  \u003cli\u003eHighly engaging - the detective hook pulls in reluctant and struggling learners\u003c\/li\u003e\n  \u003cli\u003eTargets the place-holder zero, the single biggest source of decimal errors\u003c\/li\u003e\n  \u003cli\u003eFive separate one-page cases make it easy to differentiate or stretch across a week\u003c\/li\u003e\n  \u003cli\u003eWorks for the whole class, from struggling to advanced\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 Mystery Detectives, decimal and place value worksheets, and detective-themed activities for elementary classrooms.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62170874478962,"sku":"17272460","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/decimal-word-form-to-standard-form-mystery-detective-worksheets-5th-grade-17272460.jpg?v=1792462091"},{"product_id":"multi-digit-multiplication-long-division-word-problems-mystery-detective-grades-4-6","title":"Multi-Digit Multiplication \u0026 Long Division Word Problems | Mystery Detective | Grades 4–6","description":"\u003cp\u003eMultiplication and division word problems, multi-digit long division practice, and standard algorithm worksheets for 5th grade are all included in this school-themed Mini Mystery Detective packs of math worksheets. Students read each real-world word problem, decide whether to multiply or divide, solve it, and use their answers to cross suspects off a line-up until one culprit is left. Perfect for math centers, morning work, early finishers, homework, sub plans, spiral review, and small-group intervention. Completely no prep - just print and go.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMultiplying two-digit by two-digit numbers using the standard algorithm: 94 x 51, 71 x 56\u003c\/li\u003e\n  \u003cli\u003eMultiplying three-digit by two-digit numbers with regrouping in the partial products: 253 x 26, 217 x 18\u003c\/li\u003e\n  \u003cli\u003eDividing three-digit numbers by two-digit divisors: 528 divided by 33, 783 divided by 27\u003c\/li\u003e\n  \u003cli\u003eLong division with four-digit dividends and two-digit divisors: 7644 divided by 42, 9576 divided by 76\u003c\/li\u003e\n  \u003cli\u003eChoosing the operation - every page mixes multiplication and division so students have to read the situation, not just repeat a procedure\u003c\/li\u003e\n  \u003cli\u003eReal-world problem types: equal groups, rows and arrays, rates and unit costs, times as many comparisons, sharing equally, and grouping\u003c\/li\u003e\n  \u003cli\u003eReading and interpreting word problems, then checking reasonableness against the suspect list\u003c\/li\u003e\n  \u003cli\u003eSelf-checking answer keys in red for every case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFive school-themed mysteries to crack: The Map Room Muddle, The Math Club Mix-Up, The Office Supply Slip, The Protractor Plot, and The Open House Order. Every division works out exactly, so every answer matches cleanly. Answer keys included for every case.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is a Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit. Every suspect wears an ID badge, and each correct answer eliminates one of them - so if a student finishes with exactly one suspect left, they know their math is right. Skill practice plus critical thinking in one engaging, self-checking worksheet set.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMath centers and rotations\u003c\/li\u003e\n  \u003cli\u003eMorning work and warm-ups\u003c\/li\u003e\n  \u003cli\u003eEarly finishers\u003c\/li\u003e\n  \u003cli\u003eSubstitute and relief days\u003c\/li\u003e\n  \u003cli\u003eHomework and independent practice\u003c\/li\u003e\n  \u003cli\u003eSpiral review before testing\u003c\/li\u003e\n  \u003cli\u003eSmall-group intervention\u003c\/li\u003e\n  \u003cli\u003eWhole-class problem-solving lessons\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for 5th graders. Also beneficial for struggling 6th grade students who need extra practice with multi-digit multiplication and long division, and advanced 4th grade students ready for a challenge.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love Mystery Detectives\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - just print and hand out\u003c\/li\u003e\n  \u003cli\u003eCompletely self-checking, so students catch their own mistakes without you marking every page\u003c\/li\u003e\n  \u003cli\u003eThe detective hook pulls in reluctant and struggling mathematicians\u003c\/li\u003e\n  \u003cli\u003eWord problems build real problem-solving, not just procedure practice\u003c\/li\u003e\n  \u003cli\u003eEvery page is a fresh case with its own story, suspects, and villain\u003c\/li\u003e\n  \u003cli\u003eWorks for the whole class, from intervention groups to early finishers\u003c\/li\u003e\n\u003c\/ul\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":62170875134322,"sku":"17282486","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/5th-grade-multiplication-and-division-word-problems-mystery-detective-worksheets-17282486.jpg?v=1792461530"},{"product_id":"decimal-operations-csi-mystery-bank-heist","title":"Decimal Operations CSI Mystery Worksheets | Grades 5–6 | The Bank Heist","description":"\u003cp\u003eDecimal operations worksheets, adding and subtracting decimals practice, multiplying and dividing decimals activities, and powers of ten work for 5th grade and 6th grade math are all included in this CSI Mystery Detective — a no-prep math activity. Students work through all four operations with decimals - lining up the decimal point, working with money to the cent, and moving the decimal point when multiplying and dividing by 10 and 100 - to eliminate suspects and work out which cash bag was taken from the bank vault. Perfect for math centers, spiral review, test prep, sub days and independent practice, and completely no prep - just print and go.\u003c\/p\u003e\n\u003cp\u003eEvery clue is built on decimals, so students add, subtract, multiply, divide, compare and order their way through one story. A cash bag has gone from a bank vault that stayed locked all weekend, and only the math will say which one.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdding and subtracting decimals to the hundredths, keeping the decimal points lined up: 32.93 + 20.40, 68.79 - 6.87\u003c\/li\u003e\n  \u003cli\u003eMultiplying decimals by whole numbers: 5.3 x 8, 1.25 x 3\u003c\/li\u003e\n  \u003cli\u003eDividing decimals by whole numbers and by decimals: 38.8 ÷ 4, 4.5 ÷ 0.9\u003c\/li\u003e\n  \u003cli\u003eMultiplying and dividing by 10 and 100 by moving the decimal point: 6.75 x 10, 50 ÷ 100\u003c\/li\u003e\n  \u003cli\u003eComparing and ordering decimals from smallest to largest: 0.5, 0.84, 1.01, 1.1\u003c\/li\u003e\n  \u003cli\u003eWorking with decimals as money - checking bank deposits, withdrawals and balances to the cent\u003c\/li\u003e\n  \u003cli\u003eComplete answer keys\u003c\/li\u003e\n  \u003cli\u003eFull color and ink-saving black and white versions of every page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOne full-length case to crack, with every clue building on the last - from a coded message to a bank floor plan the thief escaped through.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is a CSI Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA CSI Mystery Detective is a print-and-solve math activity - like an escape room without the locks. Students work through math problems to collect evidence, eliminate suspects, and reveal who did it. It combines real skill practice with critical thinking and a detective hook that keeps the whole class engaged.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntroducing or consolidating a decimals unit\u003c\/li\u003e\n  \u003cli\u003eUpper elementary and middle school math centers\u003c\/li\u003e\n  \u003cli\u003eDecimal review before state testing\u003c\/li\u003e\n  \u003cli\u003eWarm-ups, morning work and early finishers\u003c\/li\u003e\n  \u003cli\u003eSubstitute teacher plans\u003c\/li\u003e\n  \u003cli\u003eHomework and end-of-unit spiral practice\u003c\/li\u003e\n  \u003cli\u003eWhole-class challenge days and enrichment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis decimals CSI Mystery Detective can be used any time you are teaching or revisiting decimal computation. Teachers love it for:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for 5th grade and 6th grade decimal work. Also beneficial for 7th graders who need more confidence with decimals before pre-algebra, and advanced 4th graders ready for a challenge.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective packs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFeels like a math escape room, with no locks and no technology required\u003c\/li\u003e\n  \u003cli\u003eThe detective storyline keeps students working through problem after problem\u003c\/li\u003e\n  \u003cli\u003eEasy prep - simply print and go\u003c\/li\u003e\n  \u003cli\u003eThe pages check themselves - a wrong answer stops the mystery in its tracks, so students find their own mistake before it ever reaches your marking pile\u003c\/li\u003e\n  \u003cli\u003eWorks for independent practice, partners, small groups or a whole class challenge\u003c\/li\u003e\n  \u003cli\u003eBuilds decimal fluency, place value understanding and problem solving together\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mystery Detective packs, decimal and upper elementary 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":62265122423154,"sku":"17510086","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/decimal-operations-mystery-detective-add-subtract-multiply-divide-decimals-worksheets-17510086.jpg?v=1792459395"},{"product_id":"comparing-and-rounding-decimals-mystery-detective","title":"Comparing and Rounding Decimals | Mystery Detective | Grades 3–6 | Grand Prix","description":"\u003cp\u003eComparing decimals and rounding decimals worksheets for 4th grade and 5th grade come together in this no prep CSI Mini Mystery Detective math pack of ten printable cases with a racing theme. It's decimal place value practice with tenths and hundredths, comparing decimals to the hundredths and rounding decimals to the nearest whole number and the nearest tenth. Use these math activities in math centers, for morning work or homework, or as a 4th grade math review. Answer keys are included.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eUse this pack once your class has met tenths and hundredths. The cases run from comparing tenths through to rounding. Students match each answer to a suspect's badge and cross the name off, and each page is self-checking. All ten cases are set at a Grand Prix.\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\u003eTen one-page detective cases on comparing and rounding decimals, each with an answer key\u003c\/li\u003e\n  \u003cli\u003eSix comparing decimals cases, with GREATER or LESSER clearly marked on every page\u003c\/li\u003e\n  \u003cli\u003eFour rounding decimals cases: to the nearest whole number, to the nearest tenth, and a mixed page\u003c\/li\u003e\n  \u003cli\u003eA reference page with a worked example for every strategy\u003c\/li\u003e\n  \u003cli\u003eA contents page, teacher instructions, a detective case log and a certificate of achievement\u003c\/li\u003e\n  \u003cli\u003e30 black and white pages, ready to print\u003c\/li\u003e\n\u003c\/ul\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 Slow Stopwatch\u003c\/strong\u003e - tenths, find the real lap time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Vanishing Flag\u003c\/strong\u003e - hundredths, write the lesser sector time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Pins in the Tires\u003c\/strong\u003e - tenths or hundredths, write the greater\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Backwards Gearbox\u003c\/strong\u003e - tenths or hundredths, write the lesser\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Fake Finish Line\u003c\/strong\u003e - whole number first, write the greater\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Podium Swap\u003c\/strong\u003e - mixed decimals, find the faster time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Runaway Race Car\u003c\/strong\u003e - round tenths to whole numbers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Helmet Heist\u003c\/strong\u003e - round hundredths to whole numbers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Gold Medal Mix-Up\u003c\/strong\u003e - round to the nearest tenth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Midnight Motorcycle\u003c\/strong\u003e - whole number or tenth, mixed rounding\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe cases start with comparing tenths, then hundredths, then the two mixed together, before moving on to rounding. You can run the pack alongside a decimals unit one case at a time, or hand it out as a complete review once the unit is finished. There are greater and lesser pages, and the rounding cases give 5th graders a decimal place value refresher before they add and subtract decimals. It also works for guided math groups, bell ringers, test prep, sub days, homeschool, early finishers, and back to school or end of year review.\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, where students compare decimals to the hundredths. The rounding cases match 5th grade rounding decimals work, so the whole pack doubles as 5th grade practice or a beginning of the year math review.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love Mystery Detectives\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo prep needed\u003c\/li\u003e\n  \u003cli\u003eSelf-checking. Every right answer crosses off a suspect.\u003c\/li\u003e\n  \u003cli\u003eComparing and rounding decimals in one pack, building step by step\u003c\/li\u003e\n  \u003cli\u003eA Grand Prix racing story\u003c\/li\u003e\n  \u003cli\u003ePrints well in 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\"\u003ehttps:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62593088127346,"sku":"17733330","price":4.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/comparing-and-rounding-decimals-4th-grade-math-worksheets-mystery-detective_12526b88-6c08-4145-a2ab-f21df9b6cdde.jpg?v=1792612694"}],"url":"https:\/\/kiwilandeducation.com\/collections\/math-5-nbt.oembed","provider":"Kiwiland Education","version":"1.0","type":"link"}