Correction :

22 + 6 = 28	16 - 12 = 4
16 + 13 = 29	2 × 5 = 10
16 + 21 = 37	21 + 18 = 39
34 - 16 = 18	21 + 14 = 35
8 - 1 = 7	0 + 5 = 5
17 - 3 = 14	22 + 1 = 23
18 + 22 = 40	26 - 16 = 10
10 × 2 = 20	14 + 2 = 16
34 - 16 = 18	28 - 16 = 12
5 + 17 = 22	11 - 11 = 0