1. Secrets of Mental Math: The Mathemagician’s Guide to Lightning Calculation and Amazing Math Tricks
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, and—maybe for the first time—make mathematics fun.
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This is, quite simply, the best and most popular puzzle book ever published in the Soviet Union. Since its first appearance in 1956 there have been eight editions as well as translations from the original Russian into Ukrainian, Estonian, Lettish, and Lithuanian. Almost a million copies of the Russian version alone have been sold.
Part of the reason for the book’s success is its marvelously varied assortment of brainteasers ranging from simple “catch” riddles to difficult problems (none, however, requiring advanced mathematics). Many of the puzzles will be new to Western readers, while some familiar problems have been clothed in new forms. Often the puzzles are presented in the form of charming stories that provide non-Russian readers with valuable insights into contemporary Russian life and customs. In addition, Martin Gardner, former editor of the Mathematical Games Department, Scientific American, has clarified and simplified the book to make it as easy as possible for an English-reading public to understand and enjoy. He has been careful, moreover, to retain nearly all the freshness, warmth, and humor of the original.
Lavishly illustrated with over 400 clear diagrams and amusing sketches, this inexpensive edition of the first English translation will offer weeks or even months of stimulating entertainment. It belongs in the library of every puzzlist or lover of recreational mathematics.
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Completely updated-but just as fun and easy! The bestselling refresher course in math survival returns Sharp minds, like healthy bodies, are subject to the same rule of nature: use it or lose it. And in our dollar-and-cents, bottom-line world, where numbers influence every aspect of our lives, none of us can afford to let our math skills atrophy. This revised and updated edition of All the Math You’ll Ever Need is a friendly, funny, and easy workout program that quickly puts you in command of all the powerful math tools you need, both at home and at work. * A complete update of the classic guide that has sold more than 100,000 copies * Shows step-by-step techniques for working with decimals and fractions, figuring discounts, working out time, rate, and distance problems, calculating mortgage interest rates, and much more.