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CSI Mystery

Spring Addition & Subtraction CSI Mystery Worksheets

Grades 2–5 · The Missing Flowers

3rd Grade3rd Grade Math4th Grade4th Grade Math5th Grade5th Grade MathGrade 2Grade 3Grade 4Grade 5Answer keys included

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Inside the case file

Looking for fun and engaging spring addition and subtraction worksheets for 3rd and 4th grade? This CSI Mystery Detective is the perfect printable math activity for Easter, Earth Day, and spring math review after the break. Students will solve puzzles using 3-digit addition with regrouping, subtraction from 1000, and multi-step problems — all while uncovering clues in a mystery story!

This no-prep spring math game will keep students excited and focused as they work through each math puzzle to eliminate suspects. With a detective-style storyline and self-checking clues, this printable resource is ideal for spiral review, math stations, enrichment, early finishers, or even sub plans.

This Detective Case Includes:

  • Subtraction from 100 of 2-digit numbers
  • 3-digit addition with regrouping
  • Mixed 3-digit addition and subtraction
  • Multi-digit addition
  • Word problems using addition and subtraction
  • Color and black-and-white versions included
  • Full answer keys

These spring-themed math worksheets are designed for 3rd and 4th grade students, but they're also great for struggling 5th graders who need extra practice with basic operations, or gifted 2nd graders ready for a challenge. Perfect for homeschoolers, this mystery can be completed independently or in pairs.

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Kiwiland

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