{"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","url":"https:\/\/kiwilandeducation.com\/products\/3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-christmas-theme","provider":"Kiwiland Education","version":"1.0","type":"link"}