Correction :

8 - 0 = 8	7 + 2 = 9
38 - 14 = 24	7 × 8 = 56
23 - 20 = 3	24 + 19 = 43
27 : 9 = 3	16 + 10 = 26
10 + 17 = 27	99 : 11 = 9
19 + 13 = 32	8 × 3 = 24
27 - 12 = 15	40 - 24 = 16
7 + 22 = 29	31 - 7 = 24
24 + 18 = 42	38 - 16 = 22
14 + 9 = 23	18 - 5 = 13