{"product_id":"4-digit-addition-with-regrouping-mystery-detective-worksheets-grades-3-5-st-patricks-day","title":"4-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 3–5 | St Patrick's Day","description":"\u003cp\u003e4 digit addition with regrouping worksheets for 3rd grade and 4th grade: five St Patricks Day Mystery Detective math case files, carrying across four columns on every page. March math activities, no prep, full answer keys, then math centers, early finishers, homework, morning work and sub plans, print and go. The leprechaun's gold has gone, an invitation arrived unsigned and somebody is singing Irish lullabies; every total matches one suspect only and crosses them off the lineup, so a CSI Mini Mystery Detective does its own marking.\u003c\/p\u003e\n\n\u003cp\u003eCarrying across four columns in March is an easy sell with a pot of stolen gold at the end of it. Students add, match the total to a name and cross it off, and the page marks itself as they go. One CSI Mini Mystery Detective math case a day covers St Patricks week.\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\u003eLeprechauns Gold\u003c\/strong\u003e - the gold is gone from the pot\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSt Patricks Invitation\u003c\/strong\u003e - an invitation with no sender\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurprise Shamrock\u003c\/strong\u003e - nobody will claim it\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSinging Irish Lullabies\u003c\/strong\u003e - a lullaby with no singer in sight\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSt Patrick Spirit\u003c\/strong\u003e - good deeds all over the school\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\u003eFour digit addition with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eCarrying across four columns, so the practice goes past three digit work\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\u003eUse this once three digit carrying is solid and the class is ready for the extra column, which for most rooms is late in the year. March gives you the seasonal reason to hand it out, and the skill keeps it useful long after the shamrocks come down. A carry missed in the thousands column strikes the wrong suspect, so students go back and check rather than moving on.\u003c\/p\u003e\n\n\u003cp\u003eTeachers use it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, 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 3rd grade and 4th grade, where four digit addition sits in the standards. Fifth graders take it as a quick refresher, and second graders manage it once three digit 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\u003eFour columns of carrying, a real step up from three digit work\u003c\/li\u003e\n  \u003cli\u003eStudents catch a missed carry when the wrong name 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 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":62008104157554,"sku":"5295554","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/st-patricks-day-4-digit-addition-with-regrouping-worksheets-5295554.jpg?v=1792460958","url":"https:\/\/kiwilandeducation.com\/products\/4-digit-addition-with-regrouping-mystery-detective-worksheets-grades-3-5-st-patricks-day","provider":"Kiwiland Education","version":"1.0","type":"link"}