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Adding decimals with ones and tenths parts

Learn how to add decimals, specifically to the tenths. Practice adding whole numbers first, then adding the decimal parts. Learn the concept of carrying over in decimal addition.

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• How would you do that with 3 + 4.5?
• 3 = 3 ones. 4 = 4 ones. 3 + 4.5 = 7.5
• Here is a simple way of adding decimals. (Like his example)
Let's say you have 26.52+67.26
First, you could line them up if you wanted to make it easier. We will move across the digits.
2+6 = 8 (9, with change.)
6+7=13. Now add the 1 to the 8. ^
Now we have 93. Now add the decimals. 0.5 + 0.2 = 0.7 0.02+ 0.06 = 0.08
Therefore, 93.78.
• why is there people from 50 years ago
• I have a question? If you add 1.7 + 9 would it be 9.7
• Close... 1.7 + 9 would be 10.7 because 1 + 9 is 10, and 10 + 0.7 is 10.7.
• if you add 6.3 and 2.9 do you get 10.0 or do you get 9.2.I don't understand well
• Carefully think about place values and see if that helps you make better sense of what is going on. 6.3 is 6 ones and 3 tenths. 2.9 is 2 ones and 9 tenths. We can add the like terms together. 6 ones and 2 ones gives us 8 ones. 3 tenths and 9 tenths gives us 12 tenths. Now we're left with 8 ones and 12 tenths. To add these together, we have to make them have the same unit. If we have 12 tenths, we also have 1.2 ones. 8 ones plus 1.2 ones gives us 9.2 ones. You could also do this by changing them all to tenths. 6.3 is 63 tenths. 2.9 is 29 tenths. 63 + 29 = 92. The answer is 92 tenths, or 9.2. I hope this helps. If you want help understanding why it isn't 10.0, please type out your work and we can analyze the error.
I hope this helps.
• I'm confused there's so many steps. can somebody explain this to me?
• If I were to break it down, here it is:
For example, let's take 5.5 + 6.8 . We write it like this:
+5.5
+6.8
-----
Here, we can solve it normally.
`1`
+5.5
+6.8
-----
12.3

I hope this helped!
• can't you just forget the decimal point and then add... once you get the answer you just put the decimal point back in line?
like 1.2 becomes 12 and 4.5 becomes 45
12+45= 57
57= 5.7
so yea.
• how do you do this i dont get how a 1.2 x 1.2 ma55e56re5erfdcvgyxtrsdcfsgvjxiwy7sdrcgvhwsx