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Kiwiland Education

Adding & Subtracting Integers CSI Math Mystery Worksheets | Grades 6–9 | Zombie Outbreak

Name: Adding & Subtracting Integers CSI Math Mystery Worksheets | Grades 6–9 | Zombie Outbreak
Brand: Kiwiland Education
SKU: 4908270
Price: 4.5 USD
Availability: InStock

$4.50 USD

The zombie apocalypse has begun, and the only way to stop it is to find patient zero — hidden behind a series of integer clues. This printable Adding & Subtracting Integers CSI Math Mystery turns integer practice into a detective investigation, built for Grades 6–9 classroom teachers, homeschool parents, and tutors who want focused math practice wrapped in a story students actually care about solving.

Students work through a series of clue pages, use their answers to eliminate suspects, and race to crack the case — all while getting meaningful practice with integer operations and problem solving. No apps, no prep, no fuss.

Quick Details

Grade Levels: Grades 6–9 (best for Grade 7)
Format: Printable PDF
Resource Type: CSI Math Mystery worksheets
Math Skills: Adding and subtracting integers (positive and negative numbers), including word problems
Pages: 16 pages including answer key
Best For: Math centers, sub plans, early finishers, review, small groups, and homeschool math
Tech Needed: None — no apps, locks, passwords, or student logins required

Case Summary

The zombie apocalypse has begun, and your school is in ruins. Somewhere out there is patient zero — the very first infected zombie, the source of the entire outbreak. Find them, and there is still a chance to stop it. Your students are the ones being sent in.

As CSI Math Investigators, students work through five integer clues, adding and subtracting positive and negative numbers to gather evidence. Each correct answer helps them rule a suspect out and edge closer to the zombie leader.

With every solved clue, the list of suspects shrinks — one name cleared here, another there — until only the first infected zombie is left.

Can your investigators solve all five clues and stop the outbreak before it is too late? Sharpen those pencils and crack the Zombie Outbreak case.

Skills Covered

Students will practice:

Adding integers (positive and negative)
Subtracting integers with mixed signs
Applying integer operations in word problems
Reasoning with positive and negative numbers
Using answers to eliminate suspects
Logic, reasoning, and problem solving

What's Included

CSI-style integer mystery activity
5 integer-based puzzle clue pages
Suspect elimination worksheet
Printable student pages and clue sheets
Answer key
Print-and-go PDF format

Best Used For

This printable CSI Math Mystery works well for:

Halloween or fall math review
Integer operations practice and review
Middle school RTI or intervention
Math centers and early finishers
Substitute teacher plans
Small groups and independent work
Homeschool math

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Thank you from Kiwiland Education

"Great resource, low prep, easy to use, and fun! Thank you for sharing this! Highly recommend to other teachers!"

Brandie K.

Verified buyer

"My students loved this resource! They were engaged and were able to complete the tasks with ease."

Gina H.

Verified buyer

"I have enjoyed every purchase I've made from your store. The students are always so engaged!"

Karen C.

Verified buyer

How CSI Math Mysteries Work

CSI Math Mysteries turn regular math practice into a clue-based investigation. Students solve problems, use their answers as evidence, and eliminate suspects until the case is solved.

1

Read the Case

Students begin with a short mystery scenario and find out what needs to be solved.

2

Solve the Clues

Each clue gives students focused math practice using the target skill for that resource.

3

Eliminate Suspects

Students use their answers to remove suspects from the investigation one clue at a time.

4

Crack the Case

By the end, only one suspect remains and students can reveal the answer to the mystery.

No apps, locks, passwords, or student logins are required. Just print and go.

Why Teachers Use CSI Math Mysteries

CSI Math Mysteries turn skill practice into a clue-based investigation students want to solve. They are easy to prep, flexible for different classroom routines, and help students practice math skills while using logic, reasoning, and careful problem solving.

Teacher-Friendly Review

Practice that feels like a mystery, not another worksheet.

CSI Math Mysteries help students stay focused by turning skill practice into a clue-based case. They are easy to prep, simple to use, and flexible enough for busy classroom routines.

No-Prep and Print-and-Go

Use the pages right away for review, math centers, sub plans, small groups, early finishers, or homeschool math.

Encourages Careful Thinking

Students need accurate answers to eliminate suspects, which encourages checking, reasoning, and attention to detail.

Easy to Fit Into Lessons

Use a full mystery in one session or split the clues across centers, partner work, intervention, or review rotations.

Builds Student Confidence

The mystery format gives students a clear purpose for practicing math skills and helps make review feel more rewarding.

CSI Math Mysteries combine focused math practice with problem solving, logic, and a detective-style task that students can complete independently or with support.

Frequently Asked Questions For CSI Math Mysteries

Printable CSI Math Mystery worksheets that turn math practice into clue-based detective investigations.

Is this CSI Math Mystery a digital activity?

No. This is a printable PDF resource. Students complete the CSI Math Mystery on paper. No physical item will be shipped.

Do students need apps, locks, passwords, or logins?

No. Students do not need apps, locks, passwords, or logins. Teachers can print the pages and use the CSI Math Mystery straight away.

How do students solve the CSI Math Mystery?

Students solve math clues and use their answers to eliminate suspects. Each correct answer helps them narrow down the case until only one suspect remains.

Can this CSI Math Mystery be used for sub plans?

Yes. CSI Math Mysteries work well for sub plans because students can work through the clues independently, with a partner, or in small groups.

Can this CSI Math Mystery be used for homeschool?

Yes. This printable CSI Math Mystery can be used for homeschool lessons, tutoring, review practice, enrichment, or extra math support.

Will this work for early finishers or math centers?

Yes. CSI Math Mysteries are a good fit for early finishers, math centers, small groups, independent work, review lessons, and extra practice activities.

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