75 / 25 = 3
7 + 9 = 16
16 + 5 = 21
3 * 21 = 63
63 - 50 = 13

5 * 50 = 250
7 * 9 = 63
63 + 75 = 138
250 - 138 = 112
112 - 25 = 87

25 - 5 = 20
9 + 7 = 16
75 * 20 = 1500
50 * 1500 = 75000
75000 + 16 = 75016

5 + 9 = 14
50 + 75 = 125
25 * 125 = 3125
3125 * 7 = 21875
21875 + 14 = 21889

7 + 25 = 32
50 * 75 = 3750
5 * 32 = 160
160 + 3750 = 3910
3910 - 9 = 3901

75 + 7 = 82
9 - 5 = 4
50 + 25 = 75
75 * 82 = 6150
4 + 6150 = 6154

25 - 7 = 18
18 + 75 = 93
93 - 50 = 43
5 * 43 = 215
9 + 215 = 224