{"product_id":"adding-subtracting-integers-mystery-detective-worksheets","title":"Adding \u0026 Subtracting Integers | Mystery Detective Worksheets | Grades 6–9 | Positive \u0026 Negative Numbers","description":"\u003cp\u003eAdding and subtracting integers worksheets for 6th grade and 7th grade: five Mystery Detective integer math cases with positive and negative numbers throughout. No prep, print and go, full answer keys, for math centers, warm ups, early finishers, homework, test prep and sub plans. Adding and subtracting integers practice for 6th grade and 7th grade, positive and negative numbers throughout, with stories written for middle school. It works as a math center, a warm up, test prep or a sub plan through the integers unit, and every CSI Mini Mystery Detective page is self-marking.\u003c\/p\u003e\n\n\u003cp\u003eGetting the signs right is the whole skill with integers, and a stolen phone and a hacked account get a middle school class looking twice at every one of them. The marking is student-led, so the signs get checked on the page. Five Mystery Detective math cases from one download cover the last week of the unit.\u003c\/p\u003e\n\u003cp\u003eThe stories are written with older students in mind: a social media bully, a kidnapped teacher and a careless burglar are three of the five. Students add and subtract integers, then cross off the clue that matches each answer. A sign error gives a number that isn't on the list, and students notice that themselves.\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\u003eBox of Chocolates\u003c\/strong\u003e - an unsigned gift on the desk\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Stolen Phone\u003c\/strong\u003e - a phone taken from a friend\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocial Media Bully\u003c\/strong\u003e - finding who runs the account\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThe Kidnapper\u003c\/strong\u003e - where the teacher has been taken\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBungling Burglar\u003c\/strong\u003e - a break-in at a friend's house\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 integer cases, color\u003c\/li\u003e\n  \u003cli\u003eThe five cases again in black and white\u003c\/li\u003e\n  \u003cli\u003eAn answer key for every case\u003c\/li\u003e\n  \u003cli\u003eAddition and subtraction with positive and negative numbers\u003c\/li\u003e\n  \u003cli\u003eTeacher instructions\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\u003eA CSI Mini Mystery Detective is a printed case with the problems and the clue lists on the same page. Each clue has a number. When an answer matches, that clue is out. Whatever is left at the end is the solution: who, where and when.\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\u003eThis set fits the second half of the integers unit, once students have used a number line and are ready to work without one. It also works as a refresher before integers show up in equations. Try it in a math center, with a small group, for test prep or on a sub day.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade Levels\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWritten for 6th grade and 7th grade. 6th graders use it at the end of the integers unit, and 7th graders use it for review.\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\u003eStories that suit middle school\u003c\/li\u003e\n  \u003cli\u003eColor and black and white versions\u003c\/li\u003e\n  \u003cli\u003eNo prep at all\u003c\/li\u003e\n  \u003cli\u003eStudents can check their signs as they go\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 middle school 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":52291304554866,"sku":"4944480","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/adding-and-subtracting-integers-worksheets-6th-7th-grade-4944480.jpg?v=1792462370","url":"https:\/\/kiwilandeducation.com\/products\/adding-subtracting-integers-mystery-detective-worksheets","provider":"Kiwiland Education","version":"1.0","type":"link"}