{"product_id":"adding-subtracting-integers-csi-mystery-monster-mummies","title":"Adding \u0026 Subtracting Integers CSI Mystery Worksheets | Grades 5–9 | Monster Mummy","description":"\u003cp\u003eOctober is when adding and subtracting integers gets its best hearing in middle school, and this CSI Mystery Detective case gives grades 6, 7, 8 and 9 an ancient Egypt tomb to work it in. Positive and negative numbers, subtracting integers and adding negative numbers fill the CSI math worksheets, with answer keys for every page and color and black-and-white versions ready to print. Something in the sealed tomb is awake, and only the integers on the walls can say what. Students carry a running total along a path, color the correct arrow forward and decode two secret messages, each answer removing a suspect until the mystery has a name.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Case: The Monster Mummy\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYour students are with an archaeological team that has found a sealed tomb and gone in anyway. In the first chamber there is a cup, glowing faintly, with two snakes for handles. Everything that has happened since started there. Something in this tomb is awake now, and the only way to say what it is - how tall, how fast, how bad it smells - is to work the integers on the walls.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Inside\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdding and subtracting integers along a path where the running total settles the clue\u003c\/li\u003e\n  \u003cli\u003ePositive and negative number problems that color the correct arrow forward\u003c\/li\u003e\n  \u003cli\u003eDecoding a secret message from integer answers\u003c\/li\u003e\n  \u003cli\u003eA matching page where the line drawn passes through the letter that matters\u003c\/li\u003e\n  \u003cli\u003eA second decoding page built on adding and subtracting negative numbers\u003c\/li\u003e\n  \u003cli\u003eFull color and black-and-white versions of every page\u003c\/li\u003e\n  \u003cli\u003eAnswer keys for the whole case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat Is a CSI Mystery Detective Case?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEach page asks one question about the mummy and hands your students the integer problems that answer it. They solve, they eliminate, and the case closes when one suspect is left. Sign errors surface immediately, because a wrong sign breaks the message and the description stops making sense.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Use This Resource\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eInteger review before or after a unit test\u003c\/li\u003e\n  \u003cli\u003eAn ancient Egypt topic, alongside your history and reading work\u003c\/li\u003e\n  \u003cli\u003eMath centers, early finishers and independent work\u003c\/li\u003e\n  \u003cli\u003eEmergency sub plans that run themselves\u003c\/li\u003e\n  \u003cli\u003eEnd of year review, when attention is thin and the work still has to happen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for grade 6 and grade 7, and it holds up for grade 8 and grade 9 students who need integer review. Sixth graders meeting negative numbers for the first time usually work it in pairs; older students run it independently and finish inside a lesson.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy Teachers Love CSI Mystery Detective Cases\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eZero prep - print and hand out\u003c\/li\u003e\n  \u003cli\u003eSelf-checking by design, because a wrong sign breaks the deduction\u003c\/li\u003e\n  \u003cli\u003eA middle school activity that is not babyish\u003c\/li\u003e\n  \u003cli\u003eWorks as a whole lesson, a center, or a filler for an awkward afternoon\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLove this resource?\u003c\/p\u003e\n\n\u003cp\u003eFollow Kiwiland Education for new detective cases, seasonal math activities and updates on discounts and new releases.\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":52334869676402,"sku":"6955229","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/ancient-egypt-integers-csi-mystery-detective-grades-6-9-6955229.jpg?v=1792459155","url":"https:\/\/kiwilandeducation.com\/products\/adding-subtracting-integers-csi-mystery-monster-mummies","provider":"Kiwiland Education","version":"1.0","type":"link"}