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(0)Arthur Benjamin
1) Secrets of mental math: the mathemagician's guide to lightning calculation and amazing math tricks
Author
Summary
Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends - and yourself - with incredible calculations you never thought you could master, as renowned "mathemagician" Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers,...
