What is the sum of 47 and 9?

What does it mean when someone asks you for the sum of 47 and 9? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 47 and 9?" they mean that 47 is an addend and 9 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 47 and 9 is the same as 47 plus 9. Here is the addition equation with the answer:

47 + 9 = 56

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What is the sum of 47 and 10?
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