Description
Get ready for the holidays with this Christmas Math Mystery 6th grade Activity! ‘The Case of the Selfish Elf’ is a high-engagement December math activity that turns a challenging 6th-grade review into an exciting case-solving mission.
It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a NEW 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).
Christmas Math Mystery 6th Grade Activity
To find the selfish elf, students must unlock five clues by correctly solving:
- Clue 1: Find the Least Common Multiple (LCM)
- Clue 2: Add & Subtract Decimals
- Clue 3: Equivalent Ratios
- Clue 4: Convert Fractions to Decimals (denominators of 10, 100, and 1000 only)
- Clue 5: Division (Whole Numbers, 2-digit Divisors)
Flexible for Any 6th Grade Classroom
Use this versatile Christmas math activity for:
- A fun 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 Review
Q: Is this just a Christmas math activity for 6th grade? A: This mystery has a fun Christmas theme, making it the perfect December math activity. However, it’s a powerful 6th grade math review printable that you can use any time of year!
Q: What skills does this mystery cover? A: This is a comprehensive review of key 6th-grade concepts. Students will practice least common multiple (LCM), adding and subtracting decimals, and finding equivalent ratios.
Your 6th Grade Christmas Activity Hub
This is one of our 6th Grade Christmas activities! Be sure to check out the other options for a full holiday review:
- The Case of the Zombie Elves printable worksheets option (Our other Christmas math mystery!)
- The Case of the Reckless Reindeer Literacy Mystery Printable (A fun literacy-based case!)
- Digital Graphic Game Version of the Case of the Zombie Elves – THREE Math Levels in one – Play online
- Digital Graphic Game CSI Math Mystery The Case of the Christmas Chaos – THREE Math Levels in one – Play online








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