Base and Complement are very important in Vedic Mathematics and form the basis of many calculations.

## Base:

As explained above we work in a base 10 number system. In order to ease our calculations we can take any number ending with ‘0’ i.e. any multiple of 10 as our base.

## COMPLEMENT

The Complement of a number is the difference between that number and the next higher power of 10.

### 10’s complement:

This includes all 1 digit numbers. It is the number that should be added to make it 10.

The complement of 6 is 4.

The complement of 7 is 3.

### 100’s complement:

This includes all 2 digit numbers. It is the number that should be added to make it 100.

The complement of 55 is 45.

The complement of 89 is 11.