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Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks New York Public Library Young Lions Fiction Award Nominee (2019) Why Balloons Rise and ApplesThese simple math secrets and tricks will forever change how you look at the world of numbers. Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friendsand yourselfwith 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