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.

# Introduction to adding decimals: tenths

This video introduces the concept of adding decimals, specifically tenths. It explains how to visualize and calculate the addition of tenths using both numerical and visual methods, reinforcing the understanding of decimal addition.

## Want to join the conversation?

• Just remember kids if somebody walks up to you on the street and they ask you a math problem answer it. :)
• Uhm well i guess your right
• 1.2, 12/10 or call it 1 2/10. Are these still same?
• Yes, 1.2, 12/10, and 1 2/10 are all equal.

Have a blessed, wonderful day!
• i dont understand it can somebody tell me how to do it

To add any decimals, line up the decimal points first. This is an important step!

If there are any missing digits, write 0’s for them.

Then add like you would for whole numbers.

Finally, in the answer, place the decimal point directly under the lined up decimal points.

Have a blessed, wonderful day!
• At the beginning of this video I already knew what the answer was but I still listened to Sal tell us doing the problem on his own. I personally think that decimals are kinda easy now. What did all of you guys think about this video though? I personally enjoyed every part of it.
• I do understand some ading and subbracting decimalls
• You better learn i guess
• How do you add fractions to decimals?
• You first make them into one form and then add them as usual. this is a very important thing in math as it will come very often in your exams/tests . practice make people perfect ! :)
• thank you for helping me👍
• The places change the bigger the number which gets confusing anybody know a trick?

Make sure to line up the decimal points first! If there are any missing digits, then write 0’s for them.

Then add like you would with whole numbers. In the answer, put the decimal point directly underneath the lined-up decimal points.

Have a blessed, wonderful day!