CALCULATOR MANIA!

The most fun you can have with a calculator, without throwing it

by the Editors of Planet Dexter
Illustrated by Jack Keely

64 full-color (!) pages
9 1/4 x 9 1/4
$12.99
ISBN 0-201-59047-6
Ages 8-12

A favorite with teachers, parents, and kids!
Now better than ever, with a calculator that REALLY WORKS!!!

Calculator Mania! is a very sneaky book. It presents fun games and tricks kids can learn with their calculator, the kind of stuff that's so neat they'll race to share it with friends and family. At the same time it teaches some pretty astounding facts about numbers and the principles about math.

The magic of 6147
The weirdness of the number 9
How to get really rich, really fast
How to make your own secret code

"Calculator Mania! is a great book!" —Megan, age 8 (Glasgow, Scotland)

"I love Calculator Mania!" —Alex, age 14 (Evanston, Illinois)

"Calculator Mania! teaches me a lot about how I can use a calculator." —Santana, age 9 (Calgary, Alberta)

"We like Calculator Mania! so much that my daughter and I plan to vacation on Planet Dexter—please send tour information."
— Paul, age 42 (Monroeville, Pennsylvania)