What is the sum of 6 and 55?

What does it mean when someone asks you for the sum of 6 and 55? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 6 and 55?" they mean that 6 is an addend and 55 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 6 and 55 is the same as 6 plus 55. Here is the addition equation with the answer:

6 + 55 = 61

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What is the sum of 6 and 56?
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