4th Grade Math Mystery Activity | End-of-Year Review & Fun Test Prep Game
Make math test prep exciting, stress-free, and fun with "The Case of the Terrible Test Twist!" This 4th-grade math mystery transforms test preparation into a thrilling detective adventure that keeps students motivated and engaged. It’s the perfect solution for an end-of-year review or test prep activity that feels like play instead of work.
- Bonus Clues: Includes eight clues (instead of the usual five) for extended engagement and challenge!
- Comprehensive Practice: Each page features a mix of skills, hitting multiple standards to ensure a well-rounded review.
- Minimal Prep: Save time with ready-to-use printable or digital worksheets. Simply print it, or assign the digital version for seamless online learning.
- Interactive Fun: Students collect clues, solve puzzles, and "crack the case" while reinforcing essential math concepts.
Flexible Formats
- Printable Version (PDF): Just print and your student detectives are ready to jump into the mystery!
- Digital Google Slides: Easily assign the digital version through Google Slides for paperless activities.
- Easel by TPT: Complete the worksheets digitally for hassle-free online learning.
Extra Features to Boost Engagement
- Start the activity with an exciting video hook and end with a celebratory clip to reward your students!
- Printable detective awards are included to recognize students' hard work.
⭐Math Skills Covered⭐
This resource ensures a thorough review across multiple domains.
Please note: Sometimes, there is only one question addressing a skill.
This resource is designed for test-prep or review.
Each clue focuses on key math concepts, including:
- Place Value Value of the underlined digit in six-digit numbers, numbers written in words, convert from expanded form, place value word problem, rounding large numbers
- Comparing numbers and odd/even numbers is a skill embedded throughout the mystery.
- Addition Add large numbers with regrouping
- Subtraction Subtract large numbers with regrouping, including across zeroes
- Number Patterns Examine and determine the rule of a number pattern, and find missing numbers
- Factors & Multiples
- Multiplication Multiply 1-digit numbers by numbers up to 4-digits, Multiply 2-digit numbers by 2-digit numbers
- Division Divide 2 and 3-digit numbers by 1-digit numbers,interpret remainders
- Create and Interpret a Line Plot with Fractions (Build, analyze, interpret, and answer questions about a line plot with fractions.
- Measurement (customary and metric options are provided - Convert units of measurement, area, perimeter of rectangles and a complex figure made up of two rectangles
- Angles Measure angles with a protractor, solve the missing angle in adjacent angles
- Money Word problems with decimals
- Time Elapsed time word problems
- Fractions Add fractions and mixed numbers with like denominators, subtract fractions and mixed numbers with like denominators, multiply mixed numbers by whole numbers, convert decimal numbers to fractions (denominators of 10 or 100), Equivalent fractions, comparing fractions with different numerators and denominators.
PLEASE NOTE: I have tried to cover as many skills in this one pack as possible without overwhelming it. While it may not include every possible question type, it thoroughly reviews numerous math domains making it a strong resource to use as part of your test prep activities or as an end of year math review.
Why You’ll Love This Resource
- For Teachers: Say goodbye to overwhelming prep times. This ready-to-go resource saves you time while delivering meaningful and engaging learning experiences.
- For Students: Builds confidence in key math skills while motivating even reluctant learners with the thrill of solving a mystery.
Tips for Best Implementation
Due to the length of this activity, spread it out over a few days to keep students focused and engaged rather than completing it in one session.
Don’t miss the chance to transform test prep into an engaging, detective-style adventure!
For more ideas, activities, and resources, follow my store (by clicking the little green star) to stay updated on new releases. We can also stay connected via:
Blog
Instagram @mrsjsresourcecreations
>>⭐ CLICK HERE to follow me on TPT ⭐ <<
Thank you!
Mrs. J's Resource Creations © 2025
Check out more fun 4th Grade Math Mystery Activities:
Back to School Math Mystery: Case of the School Invaders - 4th Grade Edition
Back to school Math Mystery: the Case of the School Invaders. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Printable worksheets and digital via Google Slides.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Growth Mindset Math Mystery: Case of the Magnificent Growth Mindset - 4th Grade Edition
Growth Mindest Math Mystery: the Case of the Magnificent Growth Mindset. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher, or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.
⭐Optional video hook included for introducing the case! (Check it out in the preview section)
⭐BONUS: Ending video added to wrap up the case!
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Comparing and Ordering Numbers Math Mystery: Case of the Outback Outlaw - 4th Grade Edition
Comparing and Ordering Numbers Math Mystery: the Case of the Outback Outlaw. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
EASY PREP, print and solve!
Distance Learning Update: I've added a Word Document within the folder that contains a Google Doc link to share this resource with your students via Google Classroom or Drive.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Place Value Review Math Mystery: Case of the Puzzled Pirate - 4th Grade Edition
Place Value Review Math Mystery: The Case of the Puzzled Pirate. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. It is ideal for spiral review, consolidation, math centers, homework, enrichment, early finishers, or the sub-tub.
EASY PREP, print, and solve!
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Number Patterns Math Mystery: Case of the Poisonous Pizzas - 4th Grade Edition
Number Patterns Math Mystery: the Case of the Poisonous Pizzas. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Docs option provided within your download.
NEW - Distance Learning Update: I've added a Word Document within the folder that contains a Google Slides link to share this resource with your students via Google Classroom or Drive. Parts of the pages are editable so that your students can complete without having to print the pages. Please note, you will need to make a copy of the Google Slides to your drive before you can edit.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Rounding Review Math Mystery: Case of the Robot Robbery - 4th Grade Edition
Rounding Review Math Mystery: the Case of the Robot Robbery. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Video Hook and Ending Video Included.
Addition Review Math Mystery: Case of the Angry Adder - 4th Grade Edition
Addition Review Math Mystery: the Case of the Angry Adder. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Docs option provided within your download.
NEW - Distance Learning Update: I've added a Word Document within the folder that contains a Google Doc link to share this resource with your students via Google Classroom or Drive. Parts of the pages are editable so that your students can complete them without printing the pages. Please note that you will need to make a copy of the Google Slides to your drive before you can edit.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow the list of possibilities to solve the mystery case!
Fall Math Mystery: Case of the Furious Fall Winds - 4th Grade Edition
Fall Math Mystery: the Case of the Furious Fall Winds. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
EASY PREP, print and solve!
Distance Learning Update: I've added a Word Document within the folder that contains a Google Doc link to share this resource with your students via Google Classroom or Drive.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Subtraction Review Math Mystery: Case of the Dream Snatcher - 4th Grade Edition
Subtraction Review Math Mystery: the Case of the Dream Snatcher. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Free Math Mystery: Case of the Super Bad Superhero - 4th Grade Edition
Free Math Mystery: the Case of the Super Bad Superhero. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Docs option provided within your download.
--------------------------------------------------------------------------------------------
⭐Optional video hook included for introducing the case! (Check it out in the preview section)
⭐BONUS: Ending video added to wrap up the case!
---------------------------------------------------------------------------------------------
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Halloween Math Mystery: Case of the Tricking Treat - 4th Grade Edition
Halloween Math Mystery: the Case of the Tricking Treat. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!
Halloween Math Mystery: Case of the Jumpy Jack-O-Lanterns - 4th Grade Edition
Halloween Math Mystery: the Case of the Jumpy Jack-O-Lanterns. This math activity is a fun way to review and practice mathematical skills in the classroom or at home. Ideal for spiral review, consolidation, math centers, homework, enrichment, early-finisher or the sub-tub.
Distance Learning Update: I've added a Word Document within the folder that contains a Google Doc link to share this resource with your students via Google Classroom or Drive.
Students must complete math worksheets to unlock clues. Then, use their powers of deduction to narrow down the list of possibilities to solve the mystery case!