{"product_id":"4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-3-5-st-patricks-day","title":"4-Digit Subtraction with Regrouping | Mystery Detective Worksheets | Grades 3–5 | St Patrick's Day","description":"\u003cp\u003e4 digit subtraction with regrouping worksheets for 3rd grade and 4th grade, five St Patricks Day math cases, each a Mystery Detective page. No prep March math activities with full answer keys, then math centers, early finishers, homework, spiral review and sub plans, print and go. A shamrock that appeared before the bell, green balloons that walked out and a pot of gold somebody found first carry the theme, borrowing across four columns is the route to the culprit, and every answer crosses a suspect off the lineup, so a CSI Mini Mystery Detective keeps a fourth grader borrowing to the last column.\u003c\/p\u003e\n\n\u003cp\u003eFour digit subtraction is a big step for a third grader in March, and a leprechaun to unmask is what gets five CSI Mini Mystery Detective math cases of it done with a grin. The lineup does the checking for them, so the marking is student-led and yours is a quick glance at the key.\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\u003eShamrock Surprise\u003c\/strong\u003e - it appeared before the bell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWho has Green Balloons\u003c\/strong\u003e - the balloons leave the classroom\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Green Cake\u003c\/strong\u003e - who baked for the staffroom\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePot of Gold at Rainbow\u003c\/strong\u003e - somebody found it first\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeprechaun Costume\u003c\/strong\u003e - a teacher in green, but which one\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 subtraction with regrouping on every page\u003c\/li\u003e\n  \u003cli\u003eBorrowing across four columns, including through zeros\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 is a single page case your class cracks with math. The suspects stand in a lineup with a number each, the crime sheet produces those numbers, and a correct answer knocks one suspect out until the last name standing is the culprit. There is no kit and nothing to assemble, so what carries it is the arithmetic, which is what makes detective activities land where math worksheets slide off. One case runs 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\u003eFour digit borrowing is where a small error turns into a completely wrong answer, so it needs more practice than the unit gives it. Use this in March for the season, and again any time the class is heading towards decimal subtraction and needs the columns to be automatic. Because the wrong difference names the wrong suspect, students trace the error back to the column instead of starting again.\u003c\/p\u003e\n\n\u003cp\u003eIt suits test prep, homework, math centers, morning work, early finishers, sub plans, homeschool lessons and spiral review, 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 subtraction sits in the standards. Fifth graders use it as a fluency refresher before decimal subtraction, and second graders take it once three digit borrowing 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 borrowing, which is more than most worksheets ask for\u003c\/li\u003e\n  \u003cli\u003eStudents trace their own error back to the column that went wrong\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":62008104518002,"sku":"5301746","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-subtraction-with-regrouping-worksheets-5301746.jpg?v=1792461132","url":"https:\/\/kiwilandeducation.com\/products\/4-digit-subtraction-with-regrouping-mystery-detective-worksheets-grades-3-5-st-patricks-day","provider":"Kiwiland Education","version":"1.0","type":"link"}