7 * 8 = 56
5 * 9 = 45
8 * 8 = 64
49 : 7 * 9 = 7 * 9 = 63
72 : 8 * 3 =72 : 24 = 3
56 : 7 * 2 = 56 : 14 = 4
16 * 4 + 6 * 3 =64 + 18 = 82
13 * 4 + 3 * 5 = 52 + 15 = 67
4 * 5 + 4 * 9 = 20 + 45 = 65
46 - 64 : 8 = 46 - 8 = 36
50 - 24 : 3 = 50 - 8 = 42
24 - 40 : 5 = 24 - 8 = 16