Correction :

14 + 22 = 36	28 - 10 = 18
20 + 7 = 27	1 + 19 = 20
12 + 18 = 30	48 : 8 = 6
9 + 2 = 11	18 + 7 = 25
14 + 20 = 34	2 - 0 = 2
26 - 3 = 23	5 - 2 = 3
20 + 20 = 40	44 : 4 = 11
2 + 5 = 7	6 × 10 = 60
16 + 8 = 24	15 + 0 = 15
5 × 7 = 35	24 - 11 = 13