The Trachtenberg Speed System Of Basic Mathematics

Published by Pan, 1973, softcover, 256 pages, condition: very good.

Do high-speed, complicated arithmetic in your head using the Trachtenberg Speed System.

Ever find yourself struggling to check a bill or a payslip? With The Trachtenberg Speed System you can. Described as the 'shorthand of mathematics', the Trachtenberg system only requires the ability to count from one to eleven. Using a series of simplified keys it allows anyone to master calculations, giving greater speed, ease in handling numbers and increased 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. It is the perfect way to gain confidence with numbers.

An incredible alternative to multiplicative operations. I had to read this one twice to qualify a full understanding--each time taking some time to practice the techniques for an hour or two after learning them. That being said, this reframed my mental concept of multiplication, division, and back of the envelope calculation in general, complete with practice problems and a sensible teaching slope. The more I learn about mathematics and science, the more alive it seems to be, with breathing, symbiotic relationships. In my opinion, this book is another window to that perspective. Any student of math or science, formal or lifelong, can benefit from this book.