{"product_id":"4-digit-addition-with-regrouping-mystery-detective-worksheets-grades-3-5-presidents-day","title":"4-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 3–5 | Presidents Day","description":"\u003cp\u003ePresidents Day 4 digit addition with regrouping worksheets for 3rd grade and 4th grade, the bigger sister of the 2 digit pack, five math worksheets doubling as Mystery Detective cases with sixteen sums apiece. No prep, print and go, full answer keys, for math centers, morning work, early finishers, homework, test prep and sub plans across February. Lincoln's hat, a missing speech, a costume mix up, a class vote and the election day balloons run through the five cases, and carrying more than once in a sum is where a column quietly vanishes, so every total must match a clue before a suspect comes off the list, which means the CSI Mini Mystery Detective pack catches the lost column on the page and not in your marking pile.\u003c\/p\u003e\n\n\u003cp\u003eFour digit sums are where a student learns to keep every column in line, and this pack is for the class that has carrying once well in hand. Here the marking is student-led, so it happens on the page rather than at your desk. Presidents Day math in Mystery Detective style, for the class that is past two digits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePresident Lincolns Hat - the hat has gone missing\u003c\/li\u003e\n  \u003cli\u003eThe Missing Speech - somebody has taken the pages\u003c\/li\u003e\n  \u003cli\u003ePresident Costume - working out who wore what\u003c\/li\u003e\n  \u003cli\u003eVoting Class President - a count that does not add up\u003c\/li\u003e\n  \u003cli\u003eMissing Balloons - the last case, on election day\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 files, 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, nothing to prepare\u003c\/li\u003e\n  \u003cli\u003eFour 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 lists that solve 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. Lose a column and nothing matches, which sends a student back over their working.\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 weeks either side of Presidents Day, once four digit addition has been taught and simply needs keeping warm. It works as homework across the holiday week, as a February center, and as a set to leave for a substitute. Use it in math centers, for morning work, with early finishers, for homework, in sub plans and in 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 3rd grade and 4th grade, and useful in 5th grade for students who still need column addition firmed up. Second graders who are confident with three digit sums manage it with 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 Presidents Day week\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":62008142266738,"sku":"5243981","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/presidents-day-4-digit-addition-with-regrouping-worksheets-5243981.jpg?v=1792460957","url":"https:\/\/kiwilandeducation.com\/products\/4-digit-addition-with-regrouping-mystery-detective-worksheets-grades-3-5-presidents-day","provider":"Kiwiland Education","version":"1.0","type":"link"}