{"product_id":"3rd-grade-math-review-csi-mystery-missing-school-pet","title":"3rd Grade Math Review CSI Mystery Worksheets | Grades 3–4 | The Missing School Pet","description":"\u003cp\u003e3rd grade CSI Mystery Detective activities, 3 digit addition and subtraction with regrouping, multiplication and division facts within 100, rounding to the nearest 10 and 100, and multiplying by multiples of 10 are all included in this printable CSI Mystery Detective for grade 3 classrooms, homeschool families and tutors. It is built for back-to-school review, spiral review, end-of-unit review, math centers, early finishers, sub plans and homework. Completely no prep — just print and go.\u003c\/p\u003e\n\n\u003cp\u003eThe school pet has vanished from the classroom pet corner overnight, and fifteen pets are listed in the care logbook. Students work through five math clue pages and use every answer to cross suspects off the chart — fur, color, name tag, size, then the pet number — until only one pet is left. Each clue reveals one detail about the missing pet, so the math has to be right for the case to solve. No apps, no locks, no student logins.\u003c\/p\u003e\n\n\u003cp\u003eEvery page comes in color and black-and-white, and full answer keys are included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSkills Covered\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e3-digit subtraction with regrouping to break a coded message: 526 − 451, 855 − 765, 814 − 754\u003c\/li\u003e\n  \u003cli\u003e3-digit addition within 1,000 with regrouping, deciding whether each answer is correct or not: 392 + 211, 699 + 154, 534 + 418\u003c\/li\u003e\n  \u003cli\u003eMultiplication and division facts within 100: 6 × 9, 7 × 10, 9 × 2, 36 ÷ 6, 70 ÷ 10, 21 ÷ 7\u003c\/li\u003e\n  \u003cli\u003eRounding 3-digit numbers to the nearest 10 and the nearest 100: 536, 154, 218, 852, 468, 331\u003c\/li\u003e\n  \u003cli\u003eMultiplying one-digit numbers by multiples of 10: 4 × 40, 7 × 80, 2 × 90, 9 × 10\u003c\/li\u003e\n  \u003cli\u003eReading a suspect chart and using answers to eliminate suspects\u003c\/li\u003e\n  \u003cli\u003eLogic, reasoning and careful checking to identify the culprit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThe Missing School Pet case file and story page\u003c\/li\u003e\n  \u003cli\u003eFive math clue pages, each one revealing a different detail about the missing pet\u003c\/li\u003e\n  \u003cli\u003eA coded-message clue, a true-or-false tally clue, a draw-a-line matching clue, a shade-the-answer rounding clue and a path-tracing maze clue\u003c\/li\u003e\n  \u003cli\u003eSuspect chart elimination activity\u003c\/li\u003e\n  \u003cli\u003eFull answer keys for every page\u003c\/li\u003e\n  \u003cli\u003eColor and black-and-white versions\u003c\/li\u003e\n  \u003cli\u003ePrint-and-go PDF format\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is a CSI Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIt 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\n\u003cul\u003e\n  \u003cli\u003eBack-to-school and end-of-year math review\u003c\/li\u003e\n  \u003cli\u003eSpiral review of the year's core 3rd grade skills\u003c\/li\u003e\n  \u003cli\u003eMath centers and early finishers\u003c\/li\u003e\n  \u003cli\u003eSubstitute teacher plans\u003c\/li\u003e\n  \u003cli\u003eSmall groups and independent work\u003c\/li\u003e\n  \u003cli\u003eHomework and homeschool math\u003c\/li\u003e\n  \u003cli\u003eEnd-of-unit review before a test\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 3rd grade. Also beneficial for advanced 2nd graders ready for a challenge and for 4th graders who need a confidence-building review of addition, subtraction, multiplication, division and rounding.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective packs\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: a wrong answer will not solve the case, so students spot their own mistakes\u003c\/li\u003e\n  \u003cli\u003eFive different puzzle formats keep the pace up across a full review lesson\u003c\/li\u003e\n  \u003cli\u003eCovers several standards in one activity instead of one skill at a time\u003c\/li\u003e\n  \u003cli\u003eWorks for whole class, partners, centers or independent work\u003c\/li\u003e\n  \u003cli\u003eColor and black-and-white versions for any printer\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 Mystery Detective packs, CSI Mystery Detective packs, Reading Mysteries and detective-themed activities for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003eThank you\u003c\/p\u003e\n\n\u003cp\u003eKiwiland Education\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62265118228850,"sku":"17356125","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/mystery-detective-3rd-grade-3-digit-addition-subtraction-multiplication-review-17356125.jpg?v=1792459155","url":"https:\/\/kiwilandeducation.com\/products\/3rd-grade-math-review-csi-mystery-missing-school-pet","provider":"Kiwiland Education","version":"1.0","type":"link"}