Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator
By Edward H. Julius.
Description
Become a mental-math master and astound your friends, family, and teachers with ..."A fascinating and useful book. I recommend it." --Jaime Escalante (of Stand and Deliver fame) Hiram W. Johnson High School will fascinate students of all ages. A resource 'must' for all math programs." --Howard Wang, Founding Director of Sierra Canyon College Preparatory School "The tips and tricks were really cool." --Liz Matthews, age 12, Anacapa Middle School Packed with 50 tricks and tips that let you add, subtract, multiply, and divide in a flash, makes math easier and...
ISBN(s)
0471106399, 9780471106395
