6-8 -12+4 -3-6 -7+10 10+(-6) -9+15 10-12 -10-7 -9+5 14+(-16) -15+20 -12-8 -13+6 16-20 17+(-13) -7-5 23+(-25) -20+7 18-14 -10+13

6 - 8 = -2
-12 + 4 = -8
-3 - 6 = -9
-7 + 10 = 3
10 + (-6) = 4
-9 + 15 = 6
10 - 12 = -2
- 10 - 7 = -17
-9 + 5 = -4
14 + (-16) = -2
-15 + 20 = 5
-12 - 8 = -20
-13 + 6 = -7
16 - 20 = -4
17 + (-13) = 4
-7 - 5 = -12
23 + (-25) = -2
-20 + 7 = -13
18 - 14 = 4
-10 + 13 = 3

-2
-8
-9
3
4
6
-2
-17
-4
-2
5
-20
-7
-13
-2
-13
4
3