Correction :

15 + 14 = 29	2 + 23 = 25
17 + 8 = 25	15 - 2 = 13
14 + 22 = 36	1 + 6 = 7
4 + 15 = 19	5 × 6 = 30
9 + 14 = 23	17 + 22 = 39
25 - 13 = 12	3 + 14 = 17
3 + 13 = 16	31 - 14 = 17
15 - 12 = 3	39 - 16 = 23
29 - 8 = 21	3 + 1 = 4
7 + 13 = 20	5 - 0 = 5