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Brain Games: The Greatest Puzzle Book Everby George Lane
Synopses & Reviews
A series of simple steps that anyone can use to add, divide, subtract, and multiply sums that seem impossible—with no pencil, paper, or calculator
Many people tend to avoid situations where they must reach for the calculator or, even worse, work things out in their head, but the system outlined here will change that. This wonderful and fun book will teach readers how to perform a range of mathematical tasks, from simple addition to complex equations, with ease, ensuring that the frustration numbers cause is banished forever. And, of course, it will nourish the showoff in everyone.
About the Author
George Lane is the reigning champion of the Mental Calculations World Championship competition and a successful competition chess player.
What Our Readers Are Saying
History and Social Science » Military » General History