The Math Inspectors
An Amazon Best Selling series, perfect for middle-grade readers!
Join Stanley, Charlotte, Gertie, Felix, and Herman as they solve crimes using wit, humor, milkshakes... and even a little math.
PRAISE FOR THE MATH INSPECTORS
What Are People Saying?
Juggling The Numbers
"Clever, humorous and well-written detective mystery targeted for late elementary and middle school readers. I must admit the plot kept me guessing and entertained. Chapters are short and easy to read. Pencil sketches are an added bonus. I particularly enjoyed the way that the authors found a way to integrate those dreaded hard to solve math word problems right into the story line."
Amazon Reviewer
For The 8 To Tween Set
"This is a fun math story for the 8 to Tween set, with well developed characters who could jump onto the Saturday morning TV screen and find a comfortable home on PBS. I look forward to more in this series for myself and the kids in my life!"
Amazon Reviewer
Math Is Useful At The Crime Scene
"Great book for late elementary and middle school youth.... detectives who use math to solve the crime. Also teaches that "word problems" are real life math. Cute story even teachers and parents will enjoy. Math can be FUN!"
Amazon Reviewer
Are You Ready To Be A Math Inspector?
If you've read any of the Math Inspectors books, you're probably hooked on crime solving, math problems, and chocolate milkshakes. Well, we can't help you with the milkshakes. But if you've answered the bonus problems at the end of the book, check your answers below and find out just how smart you really are.
Check Your Math!
Answers to the bonus questions at the end of BOOK 1:
Problem 3:
Felix would eat 70.5 truffles for $123.38 & get sick immediately
Problem 4:
Wervish would get 159 votes and Martridge would get 141 votes
Check Your Math!
Answers to the bonus questions at the end of BOOK 2:
Problem 1:
Mr. Under sells 67 hotdogs per hour (answer is rounded)
Problem 2:
Felix needs 1.25 gallons of melted chocolate
Problem 3:
Felix needs 44 (1-pint jars) to sell all of that delicious soup
Problem 4:
Felix's shoulder will stop functioning in 349 minutes
Check Your Math!
Answers to the bonus questions at the end of BOOK 3:
Problem 1:
It will be 49/100 on the Boring Scale
Problem 2:
Gertie will pay $10 plus $13 for a penalty (for a total of $23)
Problem 3:
Gertie caught %300 more
Problem 4:
92 hours of shoveling
Problem 5:
3/4 of a foot taller
Check Your Math!
Answers to the bonus questions at the end of BOOK 4:
Problem 1:
We will make $4.19 per cat that we wash
Problem 2:
We would need to wash 478 cats
Problem 3:
Smoothie 1 = $.84, Smoothie 2 = $.68, Smoothie 3 = $.39 profit
Problem 4:
Would need to sell 513 smoothies
Check Your Math!
Answers to the bonus questions at the end of BOOK 5:
Problem 1:
The next number will be 16
Problem 2:
Begin with 1, and skip count by 3
Problem 3:
A 1/9 chance, or 11.1%
Problem 4:
A 1/6 chance, or 16.7%
Problem 5:
Gertie would finish in 20 seconds, and Felix would finish in 24 seconds. So ger
Collect all 5 of the Amazon Best Selling
Math Inspectors Books & More!
The Case of the Claymore Diamond
The Claymore Diamond is missing! And the Math Inspectors think the wrong man has been arrested... but can they prove it?
The Case of the Mysterious Mr. Jekyll
When Ravensburg is hit by acts of hilarious vandalism, the Math Inspectors are called in...but is to solve the case or take the fall?
The Case of the Christmas Caper
What's the worst possible Christmas crime? It's the one the Math Inspectors face in this story. Can they save Christmas?
The Case of the Hamilton Roller Coaster
When the Math Inspectors are targeted by a criminal mastermind, more than their favorite roller coaster is on the line. What's going to happen?
The Case of the Forgotten Mine
A field trip to an abandoned mining town...what could go wrong? How about everything! And this time, things could turn explosive.
The Math Inspectors: Top Secret Journal
Are you ready to be a Math Inspector and solve cases of your own? Then you're going to need a journal to write down all your clues!
The Math Inspectors: Make Your Own Comic Book
This book has 120 PAGES OF BLANK COMIC STRIPS just waiting for your imagination!Write your own the math mystery for The Math Inspectors: Stanley, Charlotte, Gertie, Felix, and Herman. Or, make your own adventure!
The Math Inspectors: Math Class Notebook
A Lined Journal For Math Class!
Hey Fellow Math Inspectors! If you want to get better at solving mysteries, you know what you need to do...keep getting better at math! One great place to get better at math is MATH CLASS, of course.
Meet The Math Inspectors &
A Few Other Characters
Stanley
Not only did Stanley come up with the bright idea of starting the Math Inspectors with his friends, but he's the heart of the group. If he knows there's a math mystery to be solved, he never gives up...no matter what!
Charlotte
Charlotte has been Stanley's best friend ever since she can remember. Brave, loyal, athletic, and a real math lover, Charlotte is a key member of the crew. Luckily for the Math Inspectors, she also has a photographic memory! Not a bad skill for a detective.
Gertie
Gertie may be the shortest member of the Math Inspectors, but she is has the biggest personality. Feisty but loyal, her math specialty is word problems, and she always has a notebook ready to jot down important notes and complicated problems.
Felix
Felix loves snacks and hates squirrels. He and Gertie are best pals, even though he drives her a bit crazy. Felix is always fun to have around, but don't let that fool you! He's the most advanced mathematician on the team.
Herman
Herman wasn't part of the team from the beginning. He wasn't even friends with the rest of the Math Inspectors. In fact, his unique talents aren't mathematical. But rest assured, Herman has become an indispensable part of the Math Inspectors.
Polly
Polly Partridge is DEFINITELY NOT a Math Inspector! She the leader of the English Club, and she's convinced that people who like math more than Shakespeare are crazy. She causes all sorts of problems for the Math Inspectors at school... and sometimes with the police as well.
Officer Evans
Officer Bobby Evans is a standout in the Ravensburg Police Department. Having spent years as a resource officer, Evans knows that Stanley and his friends are smart kids. When the kids turn into amateur detectives, they put a lot of trust in Evans to back them up.
Chief Abrams
Ravensburg Police Chief Abrams does not like amateur detectives messing in his business of crime solving. And he doesn't like kids very much, either. So you can imagine how much Chief Abrams loves working with the Math Inspectors! Answer: not very much.
Who Is MacBeth?
Stanley, Charlotte, Gertie, Felix, and Herman have solved lots of problems and stopped many criminals...maybe one too many! Now, one of those criminals wants a little payback. But who is MacBeth? The clues are there. Read closely and see if you can find out who this mastermind is, even before the Math Inspectors do!
Meet The Authors
If you liked The Math Inspectors, check out our other works!
Daniel Kenney
Dan is the husband of Teresa, father of many children, teacher of many students, and writer of many stories for people of all ages, including the wildly successful Remi Muldoon series, the Persistence Project books, and The History Mystery Kids.
Check out all of Dan's work here.
Emily Boever
Emily is the wife of Matt, a homeschooling mother of many children, and a teacher of typical and dyslexic students, both in person and online. Emily specializes in the topics of homeschooling, history, non-fiction research, storytelling, and dyslexia awareness.
Check out Emily's online classes here.