Correction :

7 + 2 = 9	8 - 0 = 8
5 + 14 = 19	16 - 13 = 3
2 × 9 = 18	63 : 7 = 9
110 : 11 = 10	36 - 20 = 16
24 + 13 = 37	8 + 0 = 8
23 + 19 = 42	11 + 8 = 19
34 - 11 = 23	19 + 5 = 24
20 - 18 = 2	8 + 19 = 27
24 + 2 = 26	7 + 18 = 25
24 - 13 = 11	21 + 3 = 24