What is the sum of 12 and 11?

What does it mean when someone asks you for the sum of 12 and 11? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 12 and 11?" they mean that 12 is an addend and 11 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 12 and 11 is the same as 12 plus 11. Here is the addition equation with the answer:

12 + 11 = 23

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