用四三七八怎么凑成二十四
2个回答
2014-10-08
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1: (7 - 3) × 4 + 8
2: ((7 - 3) × 4) + 8
3: 8 + (7 - 3) × 4
4: 8 + ((7 - 3) × 4)
5: 8 - (3 - 7) × 4
6: 8 - ((3 - 7) × 4)
7: 8 + (4 × (7 - 3))
8: 8 + 4 ×(7 - 3)
9: 8 - (4 × (3 - 7))
10: 8 - 4 ×(3 - 7)
11: (4 × (7 - 3)) + 8
12: 4 × (7 - 3) + 8
2: ((7 - 3) × 4) + 8
3: 8 + (7 - 3) × 4
4: 8 + ((7 - 3) × 4)
5: 8 - (3 - 7) × 4
6: 8 - ((3 - 7) × 4)
7: 8 + (4 × (7 - 3))
8: 8 + 4 ×(7 - 3)
9: 8 - (4 × (3 - 7))
10: 8 - 4 ×(3 - 7)
11: (4 × (7 - 3)) + 8
12: 4 × (7 - 3) + 8
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