# Whole numbers in expanded formÂ review

CCSS Math: 4.NBT.A.2

Review writing whole numbers in expanded form, and try some practice problems.

## Expanded form

**Expanded form**is a way to write a number by adding the value of its digits.

We can use a place value chart to think of the value of a number's digits.

### Example

Let's write $\blueD7\purpleD2\greenD2\maroonD9$ in expanded form.

Thousands | Hundreds | Tens | Ones |
---|---|---|---|

$\blueD7$ | $\purpleD2$ | $\greenD2$ | $\maroonD9$ |

$7229=\blueD{7}\text{ thousands}$ $+\,\purpleD{2}\text{ hundreds}+$ $\greenD{2}\text{ tens}+\maroonD9\text{ ones}$

**$7229$ in expanded form is $\blueD{7000}+\purpleD{200}+\greenD{20}+\maroonD9$.**

*Want to learn more about expanded form? Check out this video.*