What is the sum of 9 and 87?

What does it mean when someone asks you for the sum of 9 and 87? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 9 and 87?" they mean that 9 is an addend and 87 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 9 and 87 is the same as 9 plus 87. Here is the addition equation with the answer:

9 + 87 = 96

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What is the sum of 9 and 88?
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