算24点 3、4、4、7

1: 3 × (4 ÷ 4 + 7)
2: 3 × ((4 ÷ 4) + 7)
3: (3 - 4 + 7) × 4
4: ((3 - 4) + 7) × 4
5: (3 - (4 - 7)) × 4
6: (3 + 7 - 4) × 4
7: ((3 + 7) - 4) × 4
8: (3 + (7 - 4)) × 4
9: 3 × (7 + 4 ÷ 4)
10: 3 × (7 + (4 ÷ 4))
11: 4 × (3 - 4 + 7)
12: 4 × ((3 - 4) + 7)
13: 4 × (3 - (4 - 7))
14: 4 × (3 + 7 - 4)
15: 4 × ((3 + 7) - 4)
16: 4 × (3 + (7 - 4))
17: (4 ÷ 4 + 7) × 3
18: ((4 ÷ 4) + 7) × 3
19: 4 × (7 + 3 - 4)
20: 4 × ((7 + 3) - 4)
21: 4 × (7 + (3 - 4))
22: 4 × (7 - 4 + 3)
23: 4 × ((7 - 4) + 3)
24: 4 × (7 - (4 - 3))
25: (7 + 3 - 4) × 4
26: ((7 + 3) - 4) × 4
27: (7 + (3 - 4)) × 4
28: (7 - 4 + 3) × 4
29: ((7 - 4) + 3) × 4
30: (7 - (4 - 3)) × 4
31: (7 + 4 ÷ 4) × 3
32: (7 + (4 ÷ 4)) × 3

(4/4+7)*3

3×（7+4÷4）＝24

【7-（4-3）】*4
3*（7+4/4）