48 : 8 = 6 = 36 : 6 = 2 * 3
3 * 2 = 6 = 42 : 7 = 1 * 6
7 * 9 = 63 = 32 + 31 = 9 * 7
40 : 8 = 5 = 25 : 5 = 30 : 6