Addition and Subtraction Math Mystery Worksheets 3rd 4th 5th Grade Activities

What others say

"My students usually lose interest during math review pretty quickly, but the CSI format completely pulled them in. They were so focused on solving the case that they didn’t complain about the addition and subtraction practice at all."

Jennifer W.

Description

Are you looking to engage your students with year-long CSI Math Mysteries, from back-to-school activities at the start of the year to end-of-year addition and subtraction worksheets? This 3rd, 4th, and 5th grade math bundle is perfect for you in all seasons.

Capture your students attention with a fun CSI Math Mystery activity by taking them on a journey to solve math problems and puzzles. Students narrow down the possible options by completing the activities and marking them off until one person is left. Can you solve the mysteries?

These cases in this math bundle include addition and subtraction problems. Answers are included

Math Mysteries are an independent escape room or crack-the-code type of fun math activity where students identify suspects with puzzles and word problems instead of using locks.

Enjoy and please remember to follow me by clicking the following link to find my latest resources and receive discounts.

Click to follow me

Thank you

Kiwiland

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.

Addition and Subtraction Math Mystery Worksheets 3rd 4th 5th Grade Activities

Name: Addition and Subtraction Math Mystery Worksheets 3rd 4th 5th Grade Activities
Brand: Kiwiland
SKU: 12630175
Price: 49.50 USD
Availability: InStock
Rating: 5 (1 reviews)

Rated 5 out of 5, based on 1 reviews

5.0 (1 rating)

Kiwiland

4.4k Followers

$49.50

$70.50

SAVE

$21.00

Highlights

Grades

3rd - 6th

Subjects

Arithmetic, Basic Operations, Math

Standards

CCSS2.NBT.B.5

CCSS2.NBT.B.6

CCSS2.NBT.B.7

What others say

Jennifer W.

Description

These cases in this math bundle include addition and subtraction problems. Answers are included

Math Mysteries are an independent escape room or crack-the-code type of fun math activity where students identify suspects with puzzles and word problems instead of using locks.

Enjoy and please remember to follow me by clicking the following link to find my latest resources and receive discounts.

Click to follow me

Thank you

Kiwiland

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.

5.0

Rated 5 out of 5, based on 1 reviews

1
rating

All verified TPT purchases

The Mystery Format Changed Everything

Rated 5 out of 5

May 6, 2026

My students usually lose interest during math review pretty quickly, but the CSI format completely pulled them in. They were so focused on solving the case that they didn’t complain about the addition and subtraction practice at all.

Jennifer W.

2,003 reviews

Questions & Answers

Standards

to see state-specific standards (only available in the US).

CCSS2.NBT.B.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

CCSS2.NBT.B.6

Add up to four two-digit numbers using strategies based on place value and properties of operations.

CCSS2.NBT.B.7

Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.