63 + 12 = 75
75:3:5 = 25:5 = 5
5*8 - 6 = 40 - 6 = 34
34:3 + 3 = 17 + 3 = 20
20 + 76 = 96
96:4*3 = 24*3 = 72
72:6 - 8 = 12 - 8 = 4
4*15 + 3 = 60 + 3 = 63
