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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 start color #11accd, 7, end color #11accd, start color #7854ab, 2, end color #7854ab, start color #1fab54, 2, end color #1fab54, start color #ca337c, 9, end color #ca337c in expanded form.
ThousandsHundredsTensOnes
start color #11accd, 7, end color #11accdstart color #7854ab, 2, end color #7854abstart color #1fab54, 2, end color #1fab54start color #ca337c, 9, end color #ca337c
7229, equals, start color #11accd, 7, end color #11accd, start text, space, t, h, o, u, s, a, n, d, s, end text plus, start color #7854ab, 2, end color #7854ab, start text, space, h, u, n, d, r, e, d, s, end text, plus start color #1fab54, 2, end color #1fab54, start text, space, t, e, n, s, end text, plus, start color #ca337c, 9, end color #ca337c, start text, space, o, n, e, s, end text
empty space, equals, start color #11accd, 7000, end color #11accd, plus, start color #7854ab, 200, end color #7854ab, plus, start color #1fab54, 20, end color #1fab54, plus, start color #ca337c, 9, end color #ca337c
7229 in expanded form is start color #11accd, 7000, end color #11accd, plus, start color #7854ab, 200, end color #7854ab, plus, start color #1fab54, 20, end color #1fab54, plus, start color #ca337c, 9, end color #ca337c.

## Practice

Problem 1
• Current
What is 5, comma, 000, plus, 300, plus, 8 in standard form?

Want to try more problems like this? Check out this exercise.

## Want to join the conversation?

• what if you know how to do that kind of problem solving, and want to skip the video, but it's an assignment, can you make a button so it makes your assignment done?
• i like this app it helps me on multiplications
• yea i want two chances because you get it wrong you could get the right answer without getting a gray
• yo you got big brain thats the best idea ever
• does evryone like math as much as i do?
• I love math to.
• Hi my name is karma allison and some of this work is hard and when i get it right it said i get it wrong so i am asking you for help
• here is some help look what the questing is telling you then write it on paper(:
• it would not not go to the next question?
• you dont make sense
• do videos get u more points then assments
• maby
• this is not right that we have to do this
• I know I mean we already know how to read these numbers, so we don't need this.