What is the sum of 66 and 76?

What does it mean when someone asks you for the sum of 66 and 76? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 66 and 76?" they mean that 66 is an addend and 76 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 66 and 76 is the same as 66 plus 76. Here is the addition equation with the answer:

66 + 76 = 142

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