Why I buy this one ?
- Captivating story sheds new light on middle-school math concepts
- Discover prime numbers; explore Fibonacci numbers
- Learn about powers and square roots
- Glossary with mathematicians, terms, and concepts
- 11 challenging games for extra fun

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What our customer's say!

"Inspiring!", If you are looking to impress upon your child learning math goes far beyond getting through school with good grades this is the CD that will do it. The content is rather short and requires a good grasp of basic math skills.

"Innovative", This is a game based on the story of the same name. It is a well designed game for kids that are highly intelligent. The ideas introduced in the storyline make understanding even greater math concepts simple. But keep in mind, this is not a math blaster style game, this is for bright kids that have already gone past that

"boring", My daughter (13) and I tried The Number Devil together. She has ADD and has difficulty with math. We found the intro to be too long and the games boring. This game did not keep her attention at all. We also tried Math Blaster and would recommend that game instead. I am glad others have found this game helpful unfortunately it didnt for us.

"Motivates math understanding", The computer game version of The Number Devil closely follows the book, as kids progress through sections on prime numbers, the Fibonacci series, Pascal's triangle, and an infinite series approaching one. Nine of the ten games worked well for us, but nobody in the family was ever able to complete the tenth, the arrow game. We understood the math, but couldn't react quickly enough to shoot down all the arrows. This was disappointing, because we could never reach the bonus section. All in all, though, this is a good investment for a child, 8 or up, who loves or wants to understand the mystery of numbers.

"Teaches math, yet tells a story with it!", This is a fantastic book.
It is about a boy who is bad at math.
He has this series of math-teaching dreams.
In each one, the number devil is there to teach him and confuse him with numbers in "vroom",(which are really factorials) irrational numbers and etcetera.
I leared a whole lot of math from this book.
this book is a masterpiece. I reccomend it for any kid over 8.