# Arithmetic Course/Number System

## Number of Base Ten[edit]

The number system in use of the ordinary real life is number in of base ten consists of digit from 0 to 9 . Any number greater than 9 can be expressed as

For example

## Number of Base Two[edit]

The number system in use of the ordinary real life is number in of base ten consists of digit from 0 to 1 . Any number greater than 1 can be expressed as

For example