2-Digit by 1-Digit Multiplication

Inside the case file

November math worksheets for 3rd grade and 4th grade, on 2 digit by 1 digit multiplication, with a Thanksgiving case on every page. Students work each multiplication on the crime sheet, then use the product to cross a suspect off the lineup until one name is left, so multiplication practice arrives as math activities students want to finish. Five Thanksgiving CSI Mini Mystery Detective math case files, useful again for test prep, math centers, early finishers, homework, morning work, sub plans and spiral review. Thanksgiving math worksheets with detective activities and full answer keys, print and go.

Put one of these in front of a class in Thanksgiving week and they start straight away. The multiplication is the route to the culprit, so students work the problems for their own reasons and cross names off as they go. One case suits a whole class period, which makes the five of them a tidy week of math centers with no prep at your end.

The Cases

1. The Pumpkin Pie Recipe - the prize recipe vanishes
2. The School Pumpkin - it appeared on the desk overnight
3. The Missing Turkey - the turkey has gone missing
4. Who Is Carving the Turkey - nobody will pick up the knife
5. Thankful Teacher - somebody has been helping all term

What's Inside

• Five case files, each with a crime sheet and its own lineup of suspects
• 2 digit by 1 digit multiplication on every page
• A Thanksgiving setting throughout: pies, pumpkins and one missing turkey
• Each answer matches one suspect and no other, so the page checks itself
• A full answer key for every case
• Print and go: no cutting, no laminating, nothing to prepare

What Is a CSI Mini Mystery Detective?

A CSI Mini Mystery Detective is one printed page holding one crime and one lineup. Every suspect carries a number, the questions on the crime sheet produce those numbers, and a correct answer takes that suspect out until a single name is left. Nothing is cut, laminated or charged, so the arithmetic does all the work, and that is what separates these detective activities from ordinary math worksheets. A case fits one class period.

When to Use This Resource

The two weeks before the Thanksgiving break are what this was built for, when attention is gone and the multiplication unit still has to happen. It also stands on its own as fluency practice any time after you teach multiplying by a single digit. Because each product crosses off one suspect, a careless answer shows itself straight away and students correct it before the page is handed in.

Use it for test prep, homework, math centers, morning work, early finishers, sub plans and homeschool lessons, with a whole class, a small group or a single student.

Grade Levels

Written for 3rd grade and 4th grade, where multiplying by a single digit sits in the standards. Fifth graders take it as a November fluency check, and second graders manage it once their facts to twelve are secure.

Why Teachers Love These Cases

• Single digit multipliers, so the season is the treat and not the difficulty
• Students see their own errors when the wrong suspect gets crossed off
• Zero prep in the busiest week of November
• Works with a whole class, a small group, partners, or one student alone

Love this resource?

Follow Kiwiland Education to discover more CSI Mini Mystery Detective cases, no-prep math activities, and detective-themed printables for elementary classrooms.

Follow Kiwiland Education on TPT ↗

Buy · $4