Correction :

22 - 3 = 19	6 × 5 = 30
19 - 11 = 8	7 × 3 = 21
10 + 6 = 16	6 + 20 = 26
28 : 7 = 4	21 + 8 = 29
14 + 4 = 18	21 + 16 = 37
10 - 1 = 9	11 + 12 = 23
16 + 12 = 28	13 + 1 = 14
54 : 9 = 6	5 × 8 = 40
37 - 15 = 22	21 - 2 = 19
18 + 12 = 30	8 × 7 = 56