Book: Speed System Of Basic Mathematics Can you multiply 5132437201 by 452736502785 in seventy seconds without reaching for your calculator? Well you could if you used the techniques in this revolutionary book, now available in paperback at a time of growing concern about people's numeracy. The system, described as 'the shorthand of mathematics', only requires the ability to count from one to eleven. It is based on a series of simplified 'keys' and is easy to master giving greater speed, ease of handling numbers and increasing accuracy.
Details of Book: Speed System Of Basic Mathematics Book: Speed System Of Basic Mathematics
Author: Jakow Trachtenberg
ISBN: 0285629166
ISBN-13: 9780285629165
, 978-0285629165
Binding: Paperback
Publishing Date: 29061989
Publisher: Souvenir Press
Number of Pages: 272
Language: English