7 3 4 6 5 2 1
125 : (72 : 12 * 3 + 98 : (68 - 18 * 3) = 5
1) 18 * 3 = 54
2) 68 - 54 = 14
3) 72 : 12 = 6
4) 6 * 3 = 18
5) 98 : 14 = 7
6) 18 + 7 = 25
7) 125 : 25 = 5
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8 3 2 1 6 4 5 7
100 - (96 : (72 - 16 * 4) + 24 * 5 : 6) * 3 = 26
1) 16 * 4 = 64
2) 72 - 64 = 8
3) 96 : 8 = 12
4) 24 * 5 = 120
5) 120 : 6 = 20
6) 12 + 20 = 32
7) 32 * 3 = 96
8) 100 - 96 = 4