0
Anonymous
-13 minus -13 is 0.
Wiki User
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-8 - (-13) = - 8 + 13 = +5 ( minus a minus is a plus)
13
Whenever you minus a negative (number), you add. So it would be 104 - (-13), or 104 + 13, which is 117
-13-(-50)= -13+50= 37
-19