Can you multiply 5142437201 by 452736502785 in seventy seconds without a calculator?
Well, you could if you use the technique in this revolutionary book.
Jakow Trachtenberg believed that everyone is born with phenomenal abilities in mathematics and he devised a set of rules that allows anyone to make multiplication, division, addition, subtraction and square-root calculations accurately 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 new found confidence in using numbers.
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.
Jakow Trachtenberg was born in 1888 and invented his system of mental mathematics while imprisoned in a Nazi concentration camp during WW2 and founded the Mathematical Institute in Zurich in 1950 to teach his new method of understanding mathematics.
“Teachers should read this book… which could well revolutionise the teaching of mathematics in the future.”
“I tried an extract on a well-known woman journalist, very capable in her own field, but barely able to count. The result was magical.”