Description

Solve the case with this Valentines Day Math Mystery 3rd Grade Activity! ‘The Case of the Vanishing Valentines’ is a high-engagement activity that makes reviewing rounding and two-step word problems far more exciting than a standard worksheet.

It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a NEW ending video (with voiceovers!) 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).

Valentines Day Math Mystery 3rd Grade Activity

To find the missing cards, students must unlock five clues by correctly solving a complete math review:

• Clue 1: Addition within 1,000
• Clue 2: Subtraction within 1,000
• Clue 3: Two-Step Word Problems (Addition and Subtraction)
• Clue 4: Multiplying One-Digit Numbers by Multiples of 10
• Clue 5: Rounding Numbers to the Nearest Ten or Hundred

Flexible for Any 3rd Grade Classroom

Use this versatile Valentines Day math worksheets alternative 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 one clue at a time.

Common Questions for this 3rd Grade Math Review

Q: What skills does this mystery cover?
A: This is a comprehensive review. Students will practice rounding to the nearest 10 and 100, solving two-step word problems, and multiplying by multiples of 10.

Q: Is this better than a normal worksheet?
A: Absolutely. Standard February math worksheets can be dry. This activity adds a narrative, a suspect list, and video hooks to keep students motivated to solve every problem.

Q: How does differentiation work with these?
A: That’s our secret weapon! Many of our stories are available for other grades, so you can “clue swap” with the 2-6 grade packs. We even have a blog post explaining how: learn how to differentiate here.

Your 3rd Grade Valentine’s Hub

Don’t stop at just one mystery! Check out our other 3rd Grade Valentine’s Day Math Mysteries (covering different skills!):

• The Case of The Valentine Villain
• The Case of The Heartbroken Heroes
• CSI Digital Math Quest Escape Room Game: The Heartless Queen
• CSI Digital Math Mystery Escape Room Game: Heartbroken Heroes
• Valentine‘s Math Poject: My Valentine’s Shop

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A complete answer key and printable awards are included!

 

❤️Check out some other fun 3rd Grade Math Mystery Resources