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The Math Sleuths

A Math Mystery Detective Case File with Addition & Subtraction Practice for Kids Ages 8-12 (Beginner Level · 10 Mysteries. Volume 1)

Language EnglishEnglish
Book Paperback
Book The Math Sleuths GroLearning Minds
Libristo code: 53739873
Publishers Independently published, August 2026
Your kid can do the math. Getting them to want to - that's the mystery.You've seen the worksheet sta... Full description
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12.54
Expected in stock Expected 07. 09. 2026

Up to 30 days for returns

Your kid can do the math. Getting them to want to - that's the mystery.

You've seen the worksheet stare-down. The sighing. The "this is boring." It's not that they can't add and subtract - it's that a page of problems gives them zero reason to care. So what if every problem they solved actually unlockedsomething?

Meet The Math Sleuths.

At the neighborhood farmers market, something's always going a little sideways - and Nico, Ria, Agent G, and their pocket gadget PIP are on the case. But there's a catch: every clue is locked, and it takes Effort Tokens to unlock it. The only way to earn them? Solve the math.

Inside all 10 cases, your young detective will:

  • Solve real 2- and 3-digit addition & subtraction - with and without regrouping - to earn Effort Tokens
  • Trade Effort Tokens to unlock each clue and move the case forward
  • Fill in their own suspect grid, crossing off suspects one by one until only the answer remains
  • Reflect in a Detective Notebook after each case, building the mindset that mistakes are part of good detective work - never failures

By the final cases, your detective is cracking missing-number puzzles and word problems - the quiet on-ramp to bigger math, disguised as the toughest case in the book.

Built for the whole 8-12 range. Whether your kid is racing ahead or needs math to finally click, the mystery pulls them in and the addition-and-subtraction practice does the quiet work underneath. Screen-free. Story-driven. Secretly rigorous.

The Math Sleuths - where every clue counts, and every answer is one step closer to solving the case.

A math mystery detective case file for kids ages 8-12 · Beginner Level: Addition & Subtraction within 1,000 · Includes regrouping & word problems · 10 full cases to crack.

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About the book

Full name The Math Sleuths
Language English
Binding Book - Paperback
Date of issue 2026
Number of pages 114
EAN 9798170222193
Libristo code 53739873
Weight 285
Dimensions 216 x 280 x 6
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