Which expression correctly shows the sum of opposite numbers?

Question

A. (-25) + (-25) = -50
B. (-25) + 25 = 50
C. (-25) + (-25) = 0
D. (-25) + 25 = 0

Answer 1

To determine the sum of opposite numbers, you should consider that opposite numbers have the same magnitude but different signs. When you add an opposite number to its counterpart, the result should be zero.

For instance, the opposite of -25 is 25. Therefore, if you sum -25 and 25, the result is:

\[
(-25) + 25 = 0
\]

Thus, the correct expression that shows the sum of opposite numbers is:

D. (-25) + 25 = 0