{"product_id":"3-digit-addition-with-regrouping-halloween-math-mystery-grades-2-4-detective-mystery","title":"3-Digit Addition with Regrouping | Halloween Math Mystery | Grades 2–4 | Detective Mystery","description":"\u003cp\u003e\u003cstrong\u003e3-digit addition with regrouping goes spooky this Halloween: one of the teachers around the school is secretly a witch, and only your sharpest adders can unmask her.\u003c\/strong\u003e In this no-prep, printable Halloween \u003cstrong\u003eMath Mystery\u003c\/strong\u003e, students solve \u003cstrong\u003e3-digit addition with regrouping\u003c\/strong\u003e problems, match each sum to a teacher on the suspect list, and eliminate suspects one by one until only the witch remains. The self-checking, story-driven format builds real addition fluency while keeping 2nd, 3rd, and 4th graders engaged — a perfect Halloween activity for math centers, morning work, homework, early finishers, substitute\/relief days, indoor recess, and spiral review.\u003c\/p\u003e\u003ch3\u003eQuick Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill:\u003c\/strong\u003e 3-digit addition with regrouping (carrying)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrades:\u003c\/strong\u003e 2–4 (2nd, 3rd, 4th)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e 5 differentiated no-prep mystery worksheets in full color and black \u0026amp; white + suspect lists + full answer keys (PDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTheme:\u003c\/strong\u003e Halloween — Who Is the Witch?\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Mystery: Who Is the Witch?\u003c\/h3\u003e\u003cp\u003eOne of the teachers around the school is secretly a witch. Students solve the 3-digit addition problems, match each answer to the suspect clue list, and eliminate teachers one by one until only the witch is left. \u003cstrong\u003eFive differentiated worksheets are included\u003c\/strong\u003e — each with its own set of problems and its own suspect list — so you can re-use the activity across the week, assign different versions to different groups, or hand out alternating versions to keep everyone honest:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eWorksheet 1–5\u003c\/strong\u003e — five separate \"Who is the Witch?\" cases, each a self-contained page of 3-digit addition with its own teacher suspects to eliminate.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eWhy Teachers Love It\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero prep\u003c\/strong\u003e — just print and hand out; a print-friendly black \u0026amp; white version is included too.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-checking\u003c\/strong\u003e — the suspect-elimination format means students catch their own mistakes and stay accountable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngagement that lasts\u003c\/strong\u003e — the spooky witch hunt pulls in even reluctant and struggling students.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifferentiation-friendly\u003c\/strong\u003e — five ready-to-go versions make it easy to re-use, differentiate, or prevent copying.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSkills Covered\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdding 3-digit numbers with regrouping (carrying)\u003c\/li\u003e\n\u003cli\u003ePlace value and column addition\u003c\/li\u003e\n\u003cli\u003eAddition fact fluency and accuracy\u003c\/li\u003e\n\u003cli\u003eLogical reasoning and deductive process of elimination\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5 print-and-go \"Who is the Witch?\" mystery worksheets, in full color and black \u0026amp; white\u003c\/li\u003e\n\u003cli\u003eMatching teacher suspect lists\u003c\/li\u003e\n\u003cli\u003eFull answer keys\u003c\/li\u003e\n\u003cli\u003eStudent detective instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBest Used For\u003c\/h3\u003e\u003cp\u003eHalloween math, October math centers, independent practice, morning work, homework, early finishers, substitute\/relief days, indoor recess, and spiral review — any time you want 3-digit addition practice that feels like a game.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62005480718706,"sku":"7225582","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/3-digit-addition-with-regrouping-halloween-math-mystery-detective-cover.jpg?v=1783223571","url":"https:\/\/kiwilandeducation.com\/products\/3-digit-addition-with-regrouping-halloween-math-mystery-grades-2-4-detective-mystery","provider":"Kiwiland Education","version":"1.0","type":"link"}