5. 9+6 9+7 8+4 8+5 17-7 17-8 16-6 16-8 14-4 14-8

9 + 6 = 15
9 + 7 = 16
8 + 4 = 12
8 + 5 = 13
17 - 7 = 10
17 - 8 = 9
16 - 6 = 10
16 - 8 = 8
14 - 4 = 10
14 - 8 = 6