The Trachtenberg Speed System Of Basic Mathematics by Jakob Trachtenberg

Author:Jakob Trachtenberg
Language: eng
Format: epub
Tags: Speed Mathematics Multiplication, Division, Addition and Subtraction.
Published: 1982-10-08T00:00:00+00:00

THE SIMPLE METHOD OF DIVISION

This requires no aptitude for mathematics. We need only be able to add two numbers together and to do simple subtraction.

We are going to divide 27,483,624 by 62. The setup we use is similar to the one that most people use:

62 27483624 answer

We call the 62 the “divisor,” which is a very natural name. As we do the work, this 62 becomes the top figure of a column of figures. We get this column by adding 62 repeatedly, ten times to be exact:

62 27483624 answer

6 2 1 2 4 6 2 1 8 6

and so on.

On the left of the divisor column we are going to set up a column of digit-sum check-figures that will look like this:

Check

Divisor

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