Correction :

23 - 2 = 21	16 + 23 = 39
41 - 24 = 17	5 × 11 = 55
3 - 1 = 2	1 + 22 = 23
11 - 2 = 9	29 - 7 = 22
24 - 16 = 8	7 + 1 = 8
5 - 1 = 4	41 - 22 = 19
4 × 5 = 20	7 + 0 = 7
4 + 20 = 24	6 × 8 = 48
6 + 17 = 23	11 - 5 = 6
32 - 22 = 10	33 - 11 = 22