Be a Wizard with Numbers: 101 Ways to Count Yourself Smart
Can you multiply and divide by 2 or 10 without pencil and paper? Of course you can. And believe it or not, with just those two skills and a few simple tricks you can perform just about any everyday calculation in your head That's just a small sample of the kind of number wizardry readers will learn to master in this amazingly entertaining and supremely practical book. The...more
Published by Duncan Baird
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