Description
Bring some spooky fun to your math class with this Halloween math mystery for 6th grade! ‘The Case of the Halloween Heist’ is a high-engagement October math activity for 6th grade that turns a standard review into an exciting case-solving challenge.
This resource is loaded with options, including an optional video hook  to set the stage and a NEW bonus ending video to wrap up the case!
Easy Prep for Print or Digital
This resource is designed to be low-prep for you and high-engagement for your students.
- Printable PDF Version: Just print the worksheets, staple, and go.
- Google Slides Digital Version: 100% paperless! Simply assign in Google Classroom. (Students must be in ‘edit’ mode to type).
Halloween math mystery 6th grade
To solve the heist, students must unlock five clues by correctly solving:
- Clue 1: Multiplying Decimals by Whole Numbers
- Clue 2: Add & Subtract Fractions with Unlike Denominators
- Clue 3: Percents of Numbers (50%, 20%, 10%, 75%)
- Clue 4: Unit Rates (Whole numbers only)
- Clue 5: Greatest Common Factors (GCF)
Flexible for Any 6th Grade Classroom
Use this versatile Halloween math activity for:
- A fun October spiral review
- Math centers or stations
- Homework or enrichment
- Your “early finisher” tub
- A lifesaver for your sub-tub!
Pacing & Timing
This is a comprehensive review that can take anywhere from 30 minutes to 2+ hours, depending on your students’ skill level. We recommend pacing it by giving students one clue at a time.
Common Questions for this 6th Grade Math Mystery
Q: Is this just a Halloween math activity for 6th grade? A: This mystery has a fun Halloween theme, making it the perfect October math activity. However, it’s a great 6th grade math review printable for any time of year!
Q: What skills does this mystery cover? A: This isn’t just a simple worksheet! It’s a comprehensive review. Students will need to solve problems involving adding and subtracting fractions with unlike denominators, finding percents of numbers, and identifying the Greatest Common Factors (GCF).
Other Versions Available!
- Digital Graphic Game Edition (3 Math Levels on One)
- Â 1st Grade Edition
- 2nd Grade Edition
- 3rd Grade Edition
- 4th Grade Edition
- 5th Grade Edition
More 6th Grade Halloween Math Mysteries
Halloween Math Mystery: Case of the Tricking Treat –Â 6th Grade Edition
Halloween Math Mystery: Case of the Jumpy Jack-O-Lanterns 6th Grade Edition
Halloween Math Project: My Spooky Store
Escape Monster Mansion Differentiated Digital Graphic Game
A complete answer key is included!


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