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CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game
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What others say

"Although the tasks could have been a bit more rigorous, it's a creative resource and my students enjoyed doing it!"
star
Beth D.
"My students loved this CSI math investigation! They were fully engaged, and it was a great way to reinforce addition and subtraction skills in an exciting format. The activity was easy to prep, and it kept the whole class motivated. Highly recommend"
star
Courtney K.

Description

Turn addition and subtraction word problems into a crime-solving investigation students actually care about. Students solve real-world problem solving scenarios involving addition and subtraction across six crime scenes to uncover clues and identify the suspect.

Nothing like a good criminal investigation to liven up addition and subtraction problem solving! In this project, students will work in teams to investigate the culprits of six fictional thefts. The criminal has left six messages, layered with practice. Teams will work to build a case and present their findings to the court. Hopefully, they are convincing enough to win the verdict.

This is an elementary unit with a puzzle-solving hook that causes many different students to engage in solving traditionally mundane problems. 3rd and 4th-grade Common Core Standards are targeted for enrichment and review. Download the preview to see pretty much everything.

In this 20-page document, you will be given a mapping to the Content Standards, an outline for how to implement the project, and six number theory criminal scene puzzles.

This puzzle is mapped to Common Core Standards and includes problems featuring the following skills: Word Problems with Adding and Subtracting, Operations with Decimals & Using Price Lists

An answer key has been added to the end of the file for your convenience.

***THIS PRODUCT HAS BEEN UPDATED WITH A GOOGLE SLIDES INTERACTIVE VERSION INCLUDED. REDOWNLOAD IF YOU HAVE IT ALREADY***

#ccemathcsi To find more CSI activities CLICK HERE.

You may be interested in the following discounted bundles. SAVE $$$!

CSI Investigations – All of Them

CSI: Elementary eBook

Need an Entire Curriculum?

21st Century 3rd Grade –- the Entire Curriculum

21st Century 4th Grade –- the Entire Curriculum

For more tips, tricks and ideas check out the Clark Creative Education Blog

And join our community where I post ideas, anecdotes, elaborations & every once in a while I pass out TPT gift cards! And jokes! I do jokes too!

Clark Creative Education Facebook Page

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

CSI: Addition & Subtraction Word Problems | Problem Solving Math Review Game

Clark Creative Math
18.6k Followers
$5.00

Highlights

Digital downloads
Grades icon
Grades
Standards icon
Standards
Pages
20
Answer Key
Included
Teaching Duration
1 hour

What others say

"Although the tasks could have been a bit more rigorous, it's a creative resource and my students enjoyed doing it!"
star
Beth D.
"My students loved this CSI math investigation! They were fully engaged, and it was a great way to reinforce addition and subtraction skills in an exciting format. The activity was easy to prep, and it kept the whole class motivated. Highly recommend"
star
Courtney K.

Save even more with bundles

Elementary math enrichment has never been this fun! There's nothing like a good criminal investigation to liven up class!CSI: Elementary is a collection of nine algebraically inspired mathematical puzzles with a touch of international flair. The nine puzzles are designed to target Common Core Standa
Price $20.00Original Price $40.00Save $20.00
9
Nothing like a good criminal investigation to liven up number sense!The bundle includes all five of my best selling CSI eBooks: Elementary, Pre-Algebra, Algebra 1, Geometry and Algebra II & Pre-Calculus. It is a total of 45 CSI Projects in all which span 2-3 class days apiece. Great for review a
Price $80.00Original Price $215.00Save $135.00
46

Description

Turn addition and subtraction word problems into a crime-solving investigation students actually care about. Students solve real-world problem solving scenarios involving addition and subtraction across six crime scenes to uncover clues and identify the suspect.

Nothing like a good criminal investigation to liven up addition and subtraction problem solving! In this project, students will work in teams to investigate the culprits of six fictional thefts. The criminal has left six messages, layered with practice. Teams will work to build a case and present their findings to the court. Hopefully, they are convincing enough to win the verdict.

This is an elementary unit with a puzzle-solving hook that causes many different students to engage in solving traditionally mundane problems. 3rd and 4th-grade Common Core Standards are targeted for enrichment and review. Download the preview to see pretty much everything.

In this 20-page document, you will be given a mapping to the Content Standards, an outline for how to implement the project, and six number theory criminal scene puzzles.

This puzzle is mapped to Common Core Standards and includes problems featuring the following skills: Word Problems with Adding and Subtracting, Operations with Decimals & Using Price Lists

An answer key has been added to the end of the file for your convenience.

***THIS PRODUCT HAS BEEN UPDATED WITH A GOOGLE SLIDES INTERACTIVE VERSION INCLUDED. REDOWNLOAD IF YOU HAVE IT ALREADY***

#ccemathcsi To find more CSI activities CLICK HERE.

You may be interested in the following discounted bundles. SAVE $$$!

CSI Investigations – All of Them

CSI: Elementary eBook

Need an Entire Curriculum?

21st Century 3rd Grade –- the Entire Curriculum

21st Century 4th Grade –- the Entire Curriculum

For more tips, tricks and ideas check out the Clark Creative Education Blog

And join our community where I post ideas, anecdotes, elaborations & every once in a while I pass out TPT gift cards! And jokes! I do jokes too!

Clark Creative Education Facebook Page

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Reviews

4.8
Rated 4.78 out of 5, based on 197 reviews
197
ratings
5
179
4
16
3
1
2
1
1
0
Mostly used with 4th grade
Reviews
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26
9
5
5
3
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3rd
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5th
6th
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All verified TPT purchases
Great and easy to use activity. Well received by students.
Rated 5 out of 5
April 21, 2026
Met expectations
Great value
Standards-aligned
My students really got into this activity and it was easy to adjust.
Kristin A.
422 reviews • Pennsylvania
Grades taught: 4th, 5th
A well-crafted resource
Rated 5 out of 5
March 25, 2026
Met expectations
Great value
Although the tasks could have been a bit more rigorous, it's a creative resource and my students enjoyed doing it!
The Cheeky Turtle
(TPT Seller)
210 reviews • South Carolina
Grades taught: 4th
Student populations: Learning difficulties
An Engaging Activity
Rated 3 out of 5
January 6, 2026
My students solved this fairly quickly, but did very much enjoy this activity. Students always seem to enjoy the CSI activities!
Erin D.
50 reviews
Grades taught: 4th
Great Resource
Rated 5 out of 5
September 14, 2025
My class enjoyed this activity and it was very helpful!
Crystal M.
678 reviews • West Virginia
Grades taught: 4th
Rated 5 out of 5
July 23, 2025
My students loved this CSI math investigation! They were fully engaged, and it was a great way to reinforce addition and subtraction skills in an exciting format. The activity was easy to prep, and it kept the whole class motivated. Highly recommend
Courtney Karst
(TPT Seller)
1,859 reviews
Grades taught: 3rd, 4th
Rated 5 out of 5
April 13, 2025
My class and I are addicted to this CSI math investigation.
Jaymee P.
484 reviews
Grades taught: 3rd
Rated 5 out of 5
January 24, 2025
I used this with my special education students and they loved it.
Laci F.
272 reviews
Grades taught: 3rd, 4th, 5th
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Rated 4 out of 5
July 30, 2023
Excellent resource, fun and engaging activities for the students. I love everything from this seller :)
Amy W.
724 reviews
Grades taught: 4th

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Fluently add and subtract multi-digit whole numbers using the standard algorithm.
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