What is the sum of 10 and 2?

What does it mean when someone asks you for the sum of 10 and 2? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 10 and 2?" they mean that 10 is an addend and 2 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 10 and 2 is the same as 10 plus 2. Here is the addition equation with the answer:

10 + 2 = 12

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