What is the sum of 30 and 50?

What does it mean when someone asks you for the sum of 30 and 50? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 30 and 50?" they mean that 30 is an addend and 50 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 30 and 50 is the same as 30 plus 50. Here is the addition equation with the answer:

30 + 50 = 80

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