Correction :

29 - 15 = 14	10 × 3 = 30
36 : 9 = 4	20 - 3 = 17
14 - 4 = 10	9 : 3 = 3
14 - 13 = 1	15 : 3 = 5
2 + 3 = 5	14 + 17 = 31
19 + 19 = 38	11 - 5 = 6
4 + 16 = 20	17 + 9 = 26
36 - 13 = 23	40 - 18 = 22
29 - 19 = 10	21 + 20 = 41
14 + 24 = 38	22 : 2 = 11