Question

What minus what equals -10

Answer 1

There are multiple combinations of numbers that can be subtracted to equal -10. Some examples include:
-5 - (-5) = -10 (subtracting -5 from -5)
0 - (-10) = -10 (subtracting -10 from 0)
5 - 15 = -10 (subtracting 15 from 5)