1679、3537、5245、67710、24点怎么算?急急急

1: (1 + 7) × (9 - 6)
2: (7 + 1) × (9 - 6)
3: (9 - 6) × (1 + 7)
4: (9 - 6) × (7 + 1)1: 3 × (5 × 3 - 7)
2: 3 × ((5 × 3) - 7)
3: (3 × 5 - 7) × 3
4: ((3 × 5) - 7) × 3
5: 3 × (3 × 5 - 7)
6: 3 × ((3 × 5) - 7)
7: (5 × 3 - 7) × 3
8: ((5 × 3) - 7) × 3
1: (5 + 5) × 2 + 4
2: ((5 + 5) × 2) + 4
3: (2 × (5 + 5)) + 4
4: 2 × (5 + 5) + 4
5: 4 + (5 + 5) × 2
6: 4 + ((5 + 5) × 2)
7: 4 + (2 × (5 + 5))
8: 4 + 2 ×(5 + 5)
1: 6 × (7 + 7 - 10)
2: 6 × ((7 + 7) - 10)
3: 6 × (7 + (7 - 10))
4: 6 × (7 - 10 + 7)
5: 6 × ((7 - 10) + 7)
6: 6 × (7 - (10 - 7))
7: (7 + 7 - 10) × 6
8: ((7 + 7) - 10) × 6
9: (7 + (7 - 10)) × 6
10: (7 - 10 + 7) × 6
11: ((7 - 10) + 7) × 6
12: (7 - (10 - 7)) × 6
1: (3 × 3 - 6) × 8
2: ((3 × 3) - 6) × 8
3: (3 + 6) ÷ 3 × 8
4: ((3 + 6) ÷ 3) × 8
5: (3 + 6) ÷ (3 ÷ 8)
6: (3 + 6) × 8 ÷ 3
7: ((3 + 6) × 8) ÷ 3
8: (3 + 6) × (8 ÷ 3)
9: (6 + 3) ÷ 3 × 8
10: ((6 + 3) ÷ 3) × 8
11: (6 + 3) ÷ (3 ÷ 8)
12: (6 + 3) × 8 ÷ 3
13: ((6 + 3) × 8) ÷ 3
14: (6 + 3) × (8 ÷ 3)
15: 8 × (3 × 3 - 6)
16: 8 × ((3 × 3) - 6)
17: 8 ÷ 3 ×(3 + 6)
18: (8 ÷ 3) × (3 + 6)
19: 8 ÷ (3 ÷ (3 + 6))
20: (8 × (3 + 6)) ÷ 3
21: 8 × (3 + 6) ÷ 3
22: 8 × ((3 + 6) ÷ 3)
23: 8 ÷ 3 ×(6 + 3)
24: (8 ÷ 3) × (6 + 3)
25: 8 ÷ (3 ÷ (6 + 3))
26: (8 × (6 + 3)) ÷ 3
27: 8 × (6 + 3) ÷ 3
28: 8 × ((6 + 3) ÷ 3)
1: (7 + 5 - 8) × 6
1: (7 - 4) × 5 + 9
1: (10 ÷ 10 + 3) × 6

（ （ 7+7）-10）× 6＝24