Multiplication & Division CSI Mystery Worksheets
Grades 3–5 · Space Moon Mission
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Inside the case file
CSI Mystery Detective work on multiplication and division facts, set on a moon base nobody can account for: Moon Mission is space CSI math worksheets for 3rd grade, 4th grade and 5th grade, timed for September and a fresh run at times tables. No agency admits building the base, and your students are Mission Leader, sent to find whoever is running it. Every corridor forces a choice and only the arithmetic decides it, so each right answer rules a suspect out and the last name standing solves the mystery. Multiplication facts circle letters on a grid and division facts decode the next instruction. Answer keys included, ready to print.
The Case: Moon Mission
There is a base on the moon that nobody can account for. No agency admits to building it, no records show it going up, and nothing is known about what is inside. Your students are the Moon Mission Leader, and the job is to find whoever is running it. Every corridor forces a choice, and the only thing that decides it correctly is the math.
What's Inside
- Multiplication facts used to circle letters on a grid and reveal a direction
- Division facts decoded through a key to uncover the next instruction
- Reading letters from a space map with a key to solve a secret message
- Times table problems that color the correct route past an obstacle
- Addition along a planet trail where the running total settles the distance
- Full color and black-and-white versions of every page
- Answer keys for the whole case
What Is a CSI Mystery Detective Case?
Take a math escape room, take away the locks and the app, and put a line-up of suspects where they were: that is a CSI Mystery Detective case. Students solve, each right answer clears one name, and the last standing is the arrest. Nothing is cut, prepared or installed. A practice page lets a class drift; detective activities do not, because one wrong answer leaves a description matching nobody. It works as a full math activity, in math centers, or as math worksheets to hand a substitute.
When to Use This Resource
- Times table and division fact practice that is not a timed test
- Back-to-school weeks and end of year review
- Math centers, early finishers and independent work
- Emergency sub plans that run themselves
- A space or STEM topic week, alongside science work
Grade Levels
Built for 3rd grade, 4th grade and 5th grade. Third graders may want their times tables to hand for the later pages; fourth and fifth graders usually run the whole case independently inside a lesson.
Why Teachers Love CSI Mystery Detective Cases
- Zero prep - print and hand out
- Self-checking by design, because a wrong answer breaks the deduction
- Fact fluency practice students ask to do again
- Works as a whole lesson, a center, or a filler for an awkward afternoon
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