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Unlock the Power of Mental Math with Yngve Vogt
Forget the calculator—this book teaches you lightning-fast calculations you can do in your head or with just a pencil. Author Yngve Vogt, a Norwegian journalist for the scientific magazine Apollon and a math enthusiast, believes that thinking a little differently is all it takes to count faster.
Inside, you'll discover simple and engaging methods for rapid arithmetic, requiring only basic knowledge of math rules. Learn the Trachtenberg system, the Chinese counting method using strokes, and many other techniques to effortlessly add, subtract, multiply, divide, extract square roots, and square large numbers. The book also shares unusual facts and fascinating stories about numbers and the people obsessed with them, alongside a brief thousand-year history of number systems—from ancient Greece to today's digital age.
Perfect for number lovers of all ages and anyone wanting to master super-fast counting for study, work, or daily convenience.