Correction :

35 - 16 = 19	9 - 1 = 8
6 + 11 = 17	42 - 20 = 22
22 + 6 = 28	0 + 22 = 22
17 - 10 = 7	6 × 4 = 24
0 + 22 = 22	15 + 23 = 38
1 × 7 = 7	22 - 13 = 9
16 + 21 = 37	22 + 1 = 23
24 + 13 = 37	14 + 8 = 22
11 + 19 = 30	17 - 2 = 15
39 - 16 = 23	88 : 8 = 11