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 3.405\blueD3.\purpleD40\maroonD5 in written form.
Ones.TenthsHundredthsThousandths
3\blueD3.4\purpleD4005\maroonD5
3.405=3 ones+405 thousandths3.405=\blueD{3}\text{ ones}+\,\purpleD{4}{0}\maroonD5\text{ thousandths}
First, we will read the number to left of the decimal.
Three\blueD{\text{Three}}
Then, we read the decimal as "and\text{\goldD{and}}".
Three and\blueD{\text{Three}} \goldD{\text{ and}}
Finally, we read the numbers right of the decimal and state the place value of the digit farthest to the right.
Three and\blueD{\text{Three}}\goldD{\text{ and}}   hundred  thousandthsfourfive\text{ \purpleD{four} hundred \maroonD{five} thousandths}
3.4053.405 in written form is three and four hundred five thousandths.
Want to learn more about written form? Check out this video.

Practice

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