-13 minus -4 is -9
-9 minus -4 is -5
13
-13 minus -13 is 0.
-4 minus 9 is -13
-8 - (-13) = - 8 + 13 = +5 ( minus a minus is a plus)
13 + -12 - 5 = -4 13 + -12 = 1 - 5 = -4
-39 minus -26 is -13
13
-7 minus -4 is -3
-4 minus -34 is 30
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