What is the sum of 30 and 70?

What does it mean when someone asks you for the sum of 30 and 70? The sum is part of the addition equation displayed below.

addend + addend = sum

When someone asks "What is the sum of 30 and 70?" they mean that 30 is an addend and 70 is an addend in an addition equation.

Therefore, as you may have inferred, the sum of 30 and 70 is the same as 30 plus 70. Here is the addition equation with the answer:

30 + 70 = 100

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