Description
Can you multiply 5142437201 by 452736502785 in seventy seconds without a calculator?Well, you could if you use the technique in this revolutionary book. The Trachtenberg system has been described as the ‘shorthand of mathematics’ and only requires the ability to count from one to eleven. Using a series of simplified keys, it allows anyone to master numbers and calculations giving greater speed, ease in handling numbers and increasing accuracy. Jakow Trachtenberg believed that everyone is born with phenomenal abilities to calculate, he devised a set of rules that allows every child to make multiplication, division, addition, subtraction and square-root calculations with unerring accuracy and at remarkable speed. At a time when there is concern about children’s ability to understand mathematics this classic book will give anyone a newfound confidence in using numbers.
