13 + -12 - 5 = -4
13 + -12 = 1 - 5 = -4
6
-8 - (-13) = - 8 + 13 = +5 ( minus a minus is a plus)
-12 -13 = -25
22
8 plus 1 times 12 minus 13 is equal to seven.
13 - 4 + 12 = 21
-13 minus -13 is 0.
6
-2.18
a negative minus a positive is a negative ex: -12-13=-25 -9-2=-11 -100-1=-101
a negative minus a negative = a positive. the two negatives put together make a plus sign. example... 5-(-7) = 13
13 - 12 + 5 = 6