初中生三进二听一汇聚怎么填
答案:1 悬赏:70
解决时间 2021-01-18 22:46
- 提问者网友：龅牙恐龙妹
- 2021-01-18 02:13
初中生三进二听一汇聚怎么填
最佳答案
- 二级知识专家网友：狂恋
- 2021-01-18 03:32
1: 2 × (4 × (7 - 4))
2: 2 × 4 ×(7 - 4)
3: (2 × 4) × (7 - 4)
4: (2 × (7 - 4)) × 4
5: 2 × (7 - 4) × 4
6: 2 × ((7 - 4) × 4)
7: 4 - (2 - 7) × 4
8: 4 - ((2 - 7) × 4)
9: 4 × (2 × (7 - 4))
10: 4 × 2 ×(7 - 4)
11: (4 × 2) × (7 - 4)
12: 4 - (4 × (2 - 7))
13: 4 - 4 ×(2 - 7)
14: 4 + (4 × (7 - 2))
15: 4 + 4 ×(7 - 2)
16: 4 + (7 - 2) × 4
17: 4 + ((7 - 2) × 4)
18: (4 × (7 - 2)) + 4
19: 4 × (7 - 2) + 4
20: (4 × (7 - 4)) × 2
21: 4 × (7 - 4) × 2
22: 4 × ((7 - 4) × 2)
23: (7 - 2) × 4 + 4
24: ((7 - 2) × 4) + 4
25: (7 - 4) × 2 × 4
26: ((7 - 4) × 2) × 4
27: (7 - 4) × (2 × 4)
28: (7 - 4) × 4 × 2
29: ((7 - 4) × 4) × 2
30: (7 - 4) × (4 × 2)
2: 2 × 4 ×(7 - 4)
3: (2 × 4) × (7 - 4)
4: (2 × (7 - 4)) × 4
5: 2 × (7 - 4) × 4
6: 2 × ((7 - 4) × 4)
7: 4 - (2 - 7) × 4
8: 4 - ((2 - 7) × 4)
9: 4 × (2 × (7 - 4))
10: 4 × 2 ×(7 - 4)
11: (4 × 2) × (7 - 4)
12: 4 - (4 × (2 - 7))
13: 4 - 4 ×(2 - 7)
14: 4 + (4 × (7 - 2))
15: 4 + 4 ×(7 - 2)
16: 4 + (7 - 2) × 4
17: 4 + ((7 - 2) × 4)
18: (4 × (7 - 2)) + 4
19: 4 × (7 - 2) + 4
20: (4 × (7 - 4)) × 2
21: 4 × (7 - 4) × 2
22: 4 × ((7 - 4) × 2)
23: (7 - 2) × 4 + 4
24: ((7 - 2) × 4) + 4
25: (7 - 4) × 2 × 4
26: ((7 - 4) × 2) × 4
27: (7 - 4) × (2 × 4)
28: (7 - 4) × 4 × 2
29: ((7 - 4) × 4) × 2
30: (7 - 4) × (4 × 2)
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