320 - 13 = 307
1,600 minus 320 is 1,280.
505 minus 320 is 185.
The answer is 320.
2,012 minus 1,692 is 320.
320 minus 179 is 141.
24.6154
-13 minus -13 is 0.
104 minus 13 is 91.
-8 - (-13) = - 8 + 13 = +5 ( minus a minus is a plus)
-104/320 = -13/40
13 - 14 - 18 - 23 - 32 = -74
7 - 18 - 13 = -24