Correction :

22 - 7 = 15	18 - 18 = 0
17 - 16 = 1	41 - 19 = 22
45 : 5 = 9	2 + 6 = 8
30 - 20 = 10	10 + 18 = 28
6 + 10 = 16	12 + 13 = 25
21 - 2 = 19	23 - 21 = 2
11 + 14 = 25	16 + 24 = 40
22 - 16 = 6	17 + 22 = 39
9 + 0 = 9	32 - 15 = 17
11 × 11 = 121	35 - 21 = 14