{"product_id":"2-digit-addition-with-regrouping-mystery-detective-worksheets-grades-1-3-christmas-theme","title":"2-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 1–3 | Christmas Theme","description":"\u003cp\u003e2 digit addition with regrouping Christmas math worksheets for 1st grade and 2nd grade, five December math sheets, each a Mystery Detective page short enough to finish in one sitting. No prep math activities with full answer keys, print and go, for math centers, morning work, early finishers, homework and sub plans. Christmas math for 1st grade and 2nd grade should be short, cheerful and real practice, and that is what this is: 2 digit addition with regrouping wrapped in a secret Santa story a young class wants to solve. It slots into December morning work or a Christmas math center, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eA young class will do more addition for a mystery than for a worksheet, and these CSI Mini Mystery Detective math cases are short enough to prove it in one morning work slot. Each total a child finds rules a suspect out, so they finish the page to learn who the secret Santa is, and every page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWho is Secret Santa\u003c\/strong\u003e - a gift arrives with no name\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Chocolates\u003c\/strong\u003e - chocolates with no card attached\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarving the Turkey\u003c\/strong\u003e - nobody will pick up the knife\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActs of Kindness\u003c\/strong\u003e - someone is doing quiet good deeds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChristmas Carols \u0026amp; Songs\u003c\/strong\u003e - carols drifting down the hallway\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive case files, each with a crime sheet and its own lineup of suspects\u003c\/li\u003e\n  \u003cli\u003eTwo digit addition with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eCarrying on most problems, with room to write the ten above the column\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 gives your class a crime, a lineup and a page of questions, and the only route to the culprit runs through the math. Each suspect wears a number, each correct answer matches one of them, and that name is struck off until a single suspect is left. Because a wrong sum rules out the wrong person, these detective activities push students to check their work in a way math worksheets do not.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDecember, and the last two weeks of term especially, when a first or second grade class has stopped sitting still and carrying still needs daily practice. One short case a day gets you through that stretch without handing out the same page twice. Forget the carry and the wrong suspect goes, which is a lesson a young child takes in faster than a red mark.\u003c\/p\u003e\n\n\u003cp\u003eUse it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a whole class, a small group or one child alone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 1st grade and 2nd grade, where two digit addition with regrouping sits in the standards. Third graders take it as a December warm up, and first graders manage it once adding without carrying is secure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOne short case a day through the hardest two weeks to teach\u003c\/li\u003e\n  \u003cli\u003eStudents learn from a missed carry the moment the wrong name goes\u003c\/li\u003e\n  \u003cli\u003eNo prep when there is no time to prepare anything\u003c\/li\u003e\n  \u003cli\u003eWorks with a whole class, a small group, partners, or one student alone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955548119410,"sku":"5036015","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/christmas-2-digit-addition-with-regrouping-grade-2-5036015.jpg?v=1792460271","url":"https:\/\/kiwilandeducation.com\/products\/2-digit-addition-with-regrouping-mystery-detective-worksheets-grades-1-3-christmas-theme","provider":"Kiwiland Education","version":"1.0","type":"link"}