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### Course: 4th grade > Unit 1

Lesson 2: Writing whole numbers in expanded form# Whole numbers in expanded form review

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 ${7}{2}{2}{9}$ in expanded form.

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

$7229$ in expanded form is ${7000}+{200}+{20}+{9}$ .

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

## Want to join the conversation?

- no pen or paper needed just your brain(24 votes)
- this is so easy i got this and you got this to if you try and focus!(24 votes)
- Which one of you is named N10(11 votes)
- its me hi, i'm the proplem its me(9 votes)

- if I have 566688888 what is the extended form(10 votes)
- 500,000,000 + 60,000,000 + 6,000,000 + 600,000 + 80,000 + 8,000 + 800 + 80 + 8 (= 566,688,888)(7 votes)

- Hi? how do you live life to it's limit(9 votes)
- make life into a variable then apply the limit to infinity

lim x => inf life(x)

Though, I believe its undetermined(4 votes)

- its not hard lol(10 votes)
- what is 5643826 x 67363737865(6 votes)
- I got 380189215219671490.

I used a variation of the Vedic multiplication technique of vertical and crosswise. You might want to look up this method for multiplying numbers with several digits.

Have a blessed, wonderful day!(9 votes)

- I need help on 1+1(3 votes)
- i like the way you did it nice(7 votes)
- why are the questions so hard ;-;(7 votes)
- where are you now in math lol(1 vote)