Correction :

3 × 11 = 33	18 - 16 = 2
27 - 22 = 5	17 + 14 = 31
25 - 6 = 19	18 - 9 = 9
19 + 20 = 39	10 - 0 = 10
1 + 3 = 4	10 - 9 = 1
23 - 23 = 0	6 × 10 = 60
29 - 8 = 21	7 + 16 = 23
35 - 20 = 15	14 - 13 = 1
43 - 24 = 19	33 - 24 = 9
3 + 9 = 12	7 + 11 = 18