{"product_id":"3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-new-year-theme","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | New Year Theme","description":"\u003cp\u003eNew Years 3 digit addition with regrouping worksheets for 2nd grade, 3rd grade and 4th grade: five January math activities, each a Mystery Detective case with sixteen column sums. Print and go with full answer keys and a black and white set, no prep, for math centers, morning work, early finishers, homework and sub plans in the first week of the new year. Somebody set the party popper off early, somebody sang the wrong words to Auld Lang Syne and the countdown is one number short, and every correct total takes a suspect off the list while a missed carry matches nobody, which is how one CSI Mini Mystery Detective download pulls three digit carrying out of the holiday rust.\u003c\/p\u003e\n\n\u003cp\u003eThree digit column addition is the skill worth bringing straight back after a holiday, and the first week back is exactly when this set shines. A case gives the practice a reason to exist, and the marking is student-led, so students find their own carrying slips as they go. It is the bigger sister of the 2 digit New Year pack, with the same party, harder math and the same Mystery Detective rules.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eParty Popper - who set it off early\u003c\/li\u003e\n  \u003cli\u003eNew Year Gift - the gift nobody owns up to\u003c\/li\u003e\n  \u003cli\u003eAuld Lang Syne - working out who sang what\u003c\/li\u003e\n  \u003cli\u003eNew Year Countdown - a count that does not add up\u003c\/li\u003e\n  \u003cli\u003eNew Year Party - the last case of the night\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFive color case pages, sixteen addition problems on each\u003c\/li\u003e\n  \u003cli\u003eThe same five cases again in black and white\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for all five cases\u003c\/li\u003e\n  \u003cli\u003eA color in page for early finishers\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page, print and go with nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eThree digit addition with regrouping throughout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOne printed page holding one crime and the clue list that solves it. Each clue carries a number, the sixteen sums on the page produce those numbers, and a correct total knocks a clue out. Work to the last question and a single suspect is left standing. Get a column wrong and nothing matches, which sends a student back over their working before you ever see it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReach for this in the first days back in January, once three digit addition has been taught and simply needs keeping warm. It works as homework over the break, as a January center, and as a set to leave for a substitute. Use it for math centers, morning work, early finishers, homework, sub plans and homeschool lessons, with a whole class, a small group or one student.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWritten for 2nd grade, 3rd grade and 4th grade. Fifth graders who still need column addition firmed up get plenty out of it, and confident second graders manage it with a little support.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eA wrong total matches no clue, so students catch their own slips\u003c\/li\u003e\n  \u003cli\u003eColor and black and white are both in the download\u003c\/li\u003e\n  \u003cli\u003eA color in page for whoever finishes first\u003c\/li\u003e\n  \u003cli\u003eFive cases covers the whole first week back\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLove this resource?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no prep math activities, and detective themed printables for elementary classrooms.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.teacherspayteachers.com\/Sellers-Im-Following\/Add\/Kiwiland\" target=\"_blank\" rel=\"noopener\"\u003eFollow Kiwiland Education on TPT ↗\u003c\/a\u003e\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":61955266675058,"sku":"5131465","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/new-year-3-digit-addition-with-regrouping-worksheets-grade-3-5131465.jpg?v=1792460694","url":"https:\/\/kiwilandeducation.com\/products\/3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-new-year-theme","provider":"Kiwiland Education","version":"1.0","type":"link"}