If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

### Unit 4: Lesson 3

Decimals in written form

# Decimals in written form review

Review writing decimals in written form, and try some practice problems.

## Written form

Written form is a way to write numbers using only words.

### Example

Let's write start color #11accd, 3, end color #11accd, point, start color #7854ab, 4, end color #7854ab, 0, start color #ca337c, 5, end color #ca337c in written form.
Ones.TenthsHundredthsThousandths
start color #11accd, 3, end color #11accd.start color #7854ab, 4, end color #7854ab0start color #ca337c, 5, end color #ca337c
3, point, 405, equals, start color #11accd, 3, end color #11accd, start text, space, o, n, e, s, end text, plus, start color #7854ab, 4, end color #7854ab, 0, start color #ca337c, 5, end color #ca337c, start text, space, t, h, o, u, s, a, n, d, t, h, s, end text
First, we will read the number to the left of the decimal.
start color #11accd, start text, T, h, r, e, e, end text, end color #11accd
Then, we read the decimal as "start text, start color #e07d10, a, n, d, end color #e07d10, end text".
start color #11accd, start text, T, h, r, e, e, end text, end color #11accd, start color #e07d10, start text, space, a, n, d, end text, end color #e07d10
Finally, we read the numbers to the right of the decimal and state the place value of the digit farthest to the right.
start color #11accd, start text, T, h, r, e, e, end text, end color #11accd, start color #e07d10, start text, space, a, n, d, end text, end color #e07d10 start text, space, start color #7854ab, f, o, u, r, end color #7854ab, space, h, u, n, d, r, e, d, space, start color #ca337c, f, i, v, e, end color #ca337c, space, t, h, o, u, s, a, n, d, t, h, s, end text
3, point, 405 in written form is three and four hundred five thousandths.

## Practice

Problem 1
Write the following number in decimal notation.
Nine and three hundred twenty-one thousandths

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

## Want to join the conversation?

• i think khan is fun and interesting and yes.. i do agree they should add some animations. but do you really think they should add that like common sense guys do we really need that is that even necessary?? like guys khan academy is for learning not for games. i am not trying to be rude guys so i hope you all understand so have a good rest of your night or day
• darae.perry482, They put the games for education/Educated games for example build a snowman helps you code if you didn't realize so there you have it.
• how do i do decimals nation
• use a expanded form
• you should put more hints
• you are not going to learn that way
• P.S
We right in one way that is the same awnser and it's wrong thats bogis |:p
• What is 100.222 plus 55.53 equals what
• khan i want yall to make bosses like when we finsh a test we can fight the boss or somthing like that! thx!
• I liked this it felt easy I just don't get fractions they just seem so hard what do you guys think