Description
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! Thatโs just a small sample of the kind of number wizardry readers will learn to master in this amazingly entertaining and supremely practical book. The authorโa former math teacher who wows audiences as โThe Mathemagicianโโtakes the anxiety out of numbers for everyone from schoolkids suffering from math phobia to grown-ups bargaining for the best car deal. And he also provides the kind of intriguing mental exercises that keep aging brains flexible and fit.
ISBN:9781844838325 
