Question

(01.01 LC)Look at the following numbers:

−2, −1, 0, 1

Which pair of numbers has a sum of zero?

Answer 1

Answer: -1, 1 = 0

Step-by-step explanation: This is the right answer because a positive plus a positive is a negative, a negeative plus a positive is negative, and a negative plus a negative is a positive. That's how you know. If there's a number line it would be even easier.

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Answer 2

-1 and 1.

by adding these two together 1+ (-1) = 0.