What is the sum of 3 and 51?

What does it mean when someone asks you for the sum of 3 and 51? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 3 and 51?" they mean that 3 is an addend and 51 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 3 and 51 is the same as 3 plus 51. Here is the addition equation with the answer:

3 + 51 = 54

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What is the sum of 3 and 52?
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