Correction :

2 + 12 = 14	29 - 14 = 15
1 × 1 = 1	7 + 19 = 26
2 + 0 = 2	0 + 16 = 16
10 + 8 = 18	36 - 21 = 15
4 + 16 = 20	37 - 14 = 23
19 - 12 = 7	21 + 15 = 36
14 - 11 = 3	20 - 1 = 19
12 - 4 = 8	27 - 9 = 18
18 - 11 = 7	3 + 16 = 19
9 + 23 = 32	20 : 2 = 10