Correction :

22 - 10 = 12	0 + 15 = 15
12 + 12 = 24	8 × 2 = 16
22 + 11 = 33	19 - 0 = 19
21 + 3 = 24	15 - 4 = 11
25 - 24 = 1	18 + 24 = 42
31 - 16 = 15	4 × 6 = 24
21 + 7 = 28	24 + 6 = 30
22 - 3 = 19	33 : 3 = 11
15 + 14 = 29	2 + 11 = 13
13 - 1 = 12	28 - 12 = 16