# Numbers And Digits, Number Digits, Number Composition

## What Are Number Digits?

Number **Digits** (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) can be used to
represent any number; these symbols are the *decimal number system*.
When only one number is used (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) we have a *single-digit*
or a *one digit* number. A digit is a one number symbol.

The following are examples of *two-digit* numbers: 10, 11, 12, ... 99.

You see that two digit symbols are put together to represent a larger number than any one digit number. Three digit numbers such as 135 is greater than any two digit number such as 99. The idea continues where four digit numbers are greater than a three digit numbers; for example 1357 is greater than 135. This idea goes as high as you want.