What is the sum of 8 and 13?

The answer you get when you add 8 and 13 together is called the sum. The sum of 8 and 13 is displayed below:

21

In math terms, the sum of 8 and 13 would be written as follows:

8 + 13 = 21

When you need to find the sum of numbers such as 8 and 13, just remember that you need to add the numbers together to get the sum.

Sum Calculator
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What is the sum of 8 and 14?
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