{"product_id":"3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-space-wars","title":"3-Digit Addition with Regrouping | Mystery Detective Worksheets | Grades 2–5 | Space Wars","description":"\u003cp\u003e3 digit addition with regrouping worksheets for 2nd grade and 3rd grade, five May 4th math case files, Mystery Detective style, set at a training academy in space. May the Fourth math activities, then no prep math centers, early finishers, homework, morning work and sub plans all year, print and go with full answer keys. A missing blade, a tournament, rogue bandits and a base under attack carry the story, every correct sum crosses a suspect off the lineup, and the carrying across the tens and hundreds underneath is real practice that checks itself on each CSI Mini Mystery Detective page.\u003c\/p\u003e\n\n\u003cp\u003eEarly May is when most teachers hand these CSI Mini Mystery Detective math cases out, and it works any other week because the academy story does the holding, not the date. Students add their way through the tournament and the attack on the base, and every sheet is self-marking, with a key for a quick glance.\u003c\/p\u003e\n\u003cp\u003eTrainees have lost a blade, bandits have raided the training center, and an army is heading for the base. Students carry across the tens and hundreds to find each sum, then cross off the matching suspect. Kids who like space adventures will enjoy the stories.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Missing Blade\u003c\/strong\u003e - a lost blade with no name\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Tournament\u003c\/strong\u003e - who will win the tournament\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRogue Bandits\u003c\/strong\u003e - the training center is raided\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Base Is Under Attack\u003c\/strong\u003e - an army closing in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Master's Lunch\u003c\/strong\u003e - what the master had for lunch\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFive space academy cases\u003c\/li\u003e\n  \u003cli\u003e3 digit addition with regrouping\u003c\/li\u003e\n  \u003cli\u003eCarrying into the tens and the hundreds\u003c\/li\u003e\n  \u003cli\u003eAnswer keys\u003c\/li\u003e\n  \u003cli\u003eA teacher instruction page\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mini Mystery Detective?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery case is a page with a story, a set of addition problems and suspect lists. Each suspect has a number. Students cross off the ones that match their sums, and one is left.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse these after 3 digit addition with regrouping has been taught. 4th graders can use them as review at the end of the year. They suit homework, early finishers, sub days and homeschool.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor 2nd grade and 3rd grade students who have learned to regroup.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love These Cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA space adventure theme\u003c\/li\u003e\n  \u003cli\u003eRegrouping in two places\u003c\/li\u003e\n  \u003cli\u003eNo prep\u003c\/li\u003e\n  \u003cli\u003eStudents see when a sum doesn't match\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWant more cases like these?\u003c\/strong\u003e\u003c\/p\u003e\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\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":62005318091122,"sku":"5146262","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/may-the-4th-3-digit-addition-with-regrouping-worksheets-5146262.jpg?v=1792462370","url":"https:\/\/kiwilandeducation.com\/products\/3-digit-addition-with-regrouping-mystery-detective-worksheets-grades-2-5-space-wars","provider":"Kiwiland Education","version":"1.0","type":"link"}