Description

Save the hunt from a terrible smell with this Easter Math Mystery 3rd Grade activity! ‘The Case of the Rotten Eggs’ is a high-engagement math review that challenges students to master place value and balancing equations to identify the culprit sabotaging the chocolate supply.

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).
• Easel by TPT: Complete the worksheets digitally for seamless online learning.

Easter Math Mystery 3rd Grade Activity

To find who spoiled the eggs, students must unlock five clues by correctly solving a scaffolded math review:

• Clue 1: Place Value (Identifying the value of the underlined digit in 3-digit numbers)
• Clue 2: Multiplication (Multiplying single digits by multiples of 10)
• Clue 3: Fractions (Matching fractions to visual models)
• Clue 4: Balancing Equations (Finding the missing number to make addition equations true)
• Clue 5: Expanded Form (Converting 3 and 4-digit numbers to standard form)

Flexible for Any 3rd Grade Classroom

Use this versatile Easter math worksheets alternative for:

• A fun activity for the week before Easter
• 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: How is this different from your other Easter Mystery (“Egg Thief”)?
A: Great question! The themes are similar, but the math is different. “The Egg Thief” focuses on **Time** and **Mental Math (Making 100)**, while this mystery (“Rotten Eggs”) focuses heavily on **Place Value** and **Balancing Equations**. Choose the one that fits your current unit best!

Q: What are “Balancing Equations”?
A: Clue 4 challenges students to understand the equal sign as a balance (e.g., 150 + 50 = 100 + ___). This is a vital **Algebraic Thinking** skill that helps prevent misconceptions about the equal sign.

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.

Other Grade Editions Available!

Love this ‘Rotten Eggs’ theme? This mystery is also available for other grade levels (great for differentiation)!

• 2nd Grade Edition
• 4th Grade Edition
• 5th Grade Edition
• 6th Grade Edition

A complete answer key and printable awards are included!