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Description
The Math Inspectors: The Case of the Hamilton Roller Coaster (Book #4)Stanley, Charlotte, Gertie and Felix are just your typical twelve year old kids. They love to hangout after school they love burgers and milkshakes and they love math. And if there's one thing they love even more than math, it's solving mysteries! Thankfully, their hometown of Ravensburg, New York has plenty of mystery, and quite a few secrets. Do you want your kids to love reading, to get lost in an adventure, and maybe even enjoy math? THE MATH
Stanley, Charlotte, Gertie and Felix are just your typical twelve-year old kids. They love to hangout after school...they love burgers and milkshakes...and they love math.And if there's one thing they love even more than math, it's solving mysteries! Thankfully, their hometown of Ravensburg, New York has plenty of mystery, and quite a few secrets.
Do you want your kids to love reading, to get lost in an adventure, and maybe even enjoy math?
THE MATH INSPECTORS HAVE AN ANSWER!
Each book in this popular mystery & detective series is designed to draw readers aged 9-12 into a mystery so intriguing, with characters so smart and funny, that they forget they're also learning about math.
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
Wallet
Color: Brown (Trifold)
Excellent material and very durable, a very necessary gift for my husband, he loved it
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Reviewed in the United States on May 2, 2026
★★★★★ 5
great wallet
Color: Brown (Trifold)
bought this a few years ago and its lasted its well built has lots of spots for id and credit cards worth the momey
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Reviewed in the United States on January 19, 2026
★★★★★ 4
Nice wallet
Color: Brown (Trifold)
Very nice wallet good quality
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Reviewed in the United States on November 26, 2025
★★★★★ 5
Perfect Buy
Color: Brown (Rodeo)
My husband says this is the best wallet he’s ever had! I have got him a. Couple but he loves this one! Well made rfid and beautiful
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Sturdy & we repurchase yearly for Hubby’s refresh
Color: Brown (Rodeo)
This is my hubbys tried and true wallet. He requests this same one every year as a refresh. He wears his 24/7 in his back pocket so it gets discolored but still holds its shape pretty well with a slight bend.
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Reviewed in the United States on March 26, 2026