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# Write decimals in expanded form

To write a decimal in expanded form, we need to break down each digit according to its place value. Start with the whole number portion, identifying the hundreds, tens, and ones places. Then, move on to the tenths, hundredths, and thousandths places. Keep in mind the order of operations when combining the expanded terms. Created by Sal Khan.

## Want to join the conversation?

• Why did you say point on this video instead of saying and?The right way to say a decimal is and.
• Either way is correct. Generally when you write decimals out in words you will say "and", and when you write them in numbers you will say "point".
• Why the left side of decimal is once and other right side is tenths
• because there are such a thing as a ones digit (1,2,3,4,5,6,7,8,9), but there is no such thing as a oneths digit. .1 = 1/10 (one tenth) .2 = 2/10 (two tenths) etc.
• how do you even make a project?
• Why when you did the seven hundredth you put it in a fraction. Why is that
• Because decimals are a fraction. In expanded form, we write each digit with its corresponding place value. All the decimal digits have place values that are fractions.
• i'm finding this complicated with all those numbers, is there an easier way to remember or to understand it?
• Absolutely. If you don't understand the words break them down into smaller words and if you don't understand the math you could watch the video a few times and you will probably get it. If you don't reach out again and someone will be able to help you
• I do not get what you are talking about because it is confusing brake it down easyer
• is a decimal point the same thing as the word "and"?
• can a decimal go forever
• Yes, it can. They are called non-terminating decimals. An example is pi, mathematicians are still trying to find the end, if there is one. Also, if there is a number that is like 3.66666666666666666666, you can put a bar notation over the first 6.
• is there another way to expand it?
• no only one way
(1 vote)
• What is the biggest decimal.
• The largest number in a decimal is 9. 10 would move up a place value.