Correction :

40 - 17 = 23	10 + 5 = 15
24 : 3 = 8	10 - 8 = 2
4 + 5 = 9	3 + 24 = 27
10 : 2 = 5	16 - 8 = 8
18 + 3 = 21	36 - 24 = 12
17 + 0 = 17	15 + 18 = 33
10 × 4 = 40	22 - 6 = 16
35 - 22 = 13	14 + 9 = 23
17 - 6 = 11	29 - 10 = 19
9 × 11 = 99	11 - 1 = 10