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### Course: Arithmetic (all content)>Unit 1

Lesson 9: Ways to write whole numbers (expanded form and written form)

# Writing a number in expanded form

Sal writes 14,897 in expanded form. Created by Sal Khan and Monterey Institute for Technology and Education.

## Want to join the conversation?

• what is the difference between thousands and thousanths
• Thousandths are a fraction, while thousands are wholes. That is the difference between the two.
• y do we even need expanded form? is it just to help us learn about numbers?or is there some reason for it that will help us when we grow up?
• Well we need place value because it help everyone in diffrent ways to learn numbers also, maybe some time in the future you will need it a essay and paper work!
• What does pi represent?
(1 vote)
• Pi is used to represent the ratio of a circle's circumference to its diameter. Hope this helps! :D
• at he gives away the awnser
• why do they make us do this if we know it 'cuz the tell us
(1 vote)
• if i get five vote i will lick the bathroom floor
• how do you chose between thousands and hundreds im confused
• when it has two numbers after the 1st number it is a 100 if it has 3 numbers after the 1st number it is a 1,000
• how to write 506,987,544 plz?
• Five-hundred six billion nine-hundred eighty seven thousand five-hundred forty four.