It is: 16 - -4 = 20
16 minus -4 is 20.
20
The same as 20+4, the answer is 24
-34 minus -20 is -14
-40 minus -20 is -20.
-11 minus -20 is 9
Negative 8 minus 12 is negative 20.
10 minus -20 is 30.
-20 negative 20 minus 20
-7 minus -4 is -3
-4 minus -34 is 30