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### Course: Arithmetic>Unit 12

Lesson 2: Adding decimals (tenths and hundredths)

# Adding decimals with ones, tenths and hundredths

Learn all about adding decimals, specifically in the hundredths place. Learn about aligning decimal points and adding each place value separately, from hundredths to ones. It also introduces a systematic way to add decimals.

## Want to join the conversation?

• how do you do the addition of decimals more simple?
• Adding up decimals is as easy as adding up whole numbers. If you line up the place values correctly, the addition is the same. Whenever you set up a decimal addition problem, just double-check that the tenths place of the first number lines up with the tenths place of the second number and so on.
• is 10 tenths 1 whole?
• Yes, 10 tenths is 1 whole. This is because 10 tenths = 10/10 and 10/10 = 1/1 which is 1 whole.
• how do you do the addition of decimals more simple?
• Think of adding with decimals as adding with normal numbers. For example:
8.74 + 9.3
You can write 9.3 as 9.30, as I will do for this example:
8.74 → 874 and 9.3 → 930
Then, add 874 and 930, which comes out to 1,804.

Finally, put the decimals back in. Your answer should come out to be 18.04. Check it with a calculator -- it's correct.
• how to decimels like this 9.86 + 76 = ?
• Dont add anything to the decimals place. Just add 76+9, and then add 0.86
• I need help multiplying fractions by whole numbers and whole numbers by fractions.
• this helped but but its still confusing
• how do you write 75 hundreths in a question
• 0.75 is 75 hundreths because that last 5 digit is in the hundreths place.
To do other numbers remember that it goes 0. tenths, hundredths, thousandths, ten thousandths, so on and so on.
• Can it be simpler because you can easiley do it by just doing it like this.

61.37
+ 4.22
--------
65.59