Multiplying Fractions by Whole Numbers

Inside the case file

Multiplying fractions by whole numbers worksheets and finding-a-fraction-of-a-number activities for 4th grade, 5th grade, and 6th grade are all included in this zombie Mini Mystery Detective pack of math worksheets. Students multiply a fraction by a whole number to solve five spooky detective cases — every problem works out to a whole-number answer, so the focus stays on the fraction skill. Perfect for math centers, morning work, early finishers, and spiral review. Completely no prep — just print and go.

What's Inside

• Multiplying a fraction by a whole number — for example 3/4 of 20 and 2/3 of 18 (also known as finding a fraction of a number)
• Working with unit and non-unit fractions and denominators from halves all the way to twelfths
• Every problem lands on a whole-number answer, keeping students focused on the fraction concept instead of remainders
• Self-checking answer keys for every case

Five zombie mysteries to solve: The Rotting Rumor, The Shuffling Shadow, The Buried Secret, The Endless Hunger, and The Creeping Curse. Answer keys included for every case.

What is a Mini Mystery Detective?

A no-prep detective activity where students solve math problems to cross off suspects and unmask the culprit — like an escape room without the locks. Every correct answer eliminates a zombie suspect, so the activity is self-checking: solve the math correctly and only the villain is left standing. Skill practice plus critical thinking in one engaging worksheet set.

When to Use This Resource

• Fraction unit practice and review
• Math centers and stations
• Morning work and bell ringers
• Early finishers
• Sub days and emergency plans
• Homework and spiral review
• Small-group intervention

Grade Levels

Designed for 4th and 5th graders learning to find a fraction of a whole number. Also beneficial for struggling 6th grade students who need extra practice and advanced 3rd graders ready for a challenge.

Why Teachers Love Mystery Detectives

• Zero prep — just print and go
• Whole-number answers keep the focus on the fraction skill, not messy remainders
• Self-checking — answer keys for every case, and the mystery only solves when the math is right
• Highly engaging — the zombie detective hook keeps the whole class on task
• Each case fits neatly into one class period

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