第1个回答 2007-11-15
2,7,8,10算不出来
2, 2, 7, 9
4, 5, 7, 10的24点答案:
1: 4 - (5 - 7) × 10
2: 4 - ((5 - 7) × 10)
3: 4 + (7 - 5) × 10
4: 4 + ((7 - 5) × 10)
5: 4 - (10 × (5 - 7))
6: 4 - 10 ×(5 - 7)
7: 4 + (10 × (7 - 5))
8: 4 + 10 ×(7 - 5)
9: (7 - 5) × 10 + 4
10: ((7 - 5) × 10) + 4
11: (10 × (7 - 5)) + 4
12: 10 × (7 - 5) + 4
3, 4, 7, 8的24点答案:
1: (4 × (7 - 3)) + 8
2: 4 × (7 - 3) + 8
3: (7 - 3) × 4 + 8
4: ((7 - 3) × 4) + 8
5: 8 - (3 - 7) × 4
6: 8 - ((3 - 7) × 4)
7: 8 - (4 × (3 - 7))
8: 8 - 4 ×(3 - 7)
9: 8 + (4 × (7 - 3))
10: 8 + 4 ×(7 - 3)
11: 8 + (7 - 3) × 4
12: 8 + ((7 - 3) × 4)
2, 4, 7, 7的24点答案:
1: (2 × (7 + 7)) - 4
2: 2 × (7 + 7) - 4
3: (7 + 7) × 2 - 4
4: ((7 + 7) × 2) - 4
5, 6, 7, 9的24点答案:
1: 6 - (5 - 7) × 9
2: 6 - ((5 - 7) × 9)
3: 6 + (7 - 5) × 9
4: 6 + ((7 - 5) × 9)
5: 6 - (9 × (5 - 7))
6: 6 - 9 ×(5 - 7)
7: 6 + (9 × (7 - 5))
8: 6 + 9 ×(7 - 5)
9: (7 - 5) × 9 + 6
10: ((7 - 5) × 9) + 6
11: (9 × (7 - 5)) + 6
12: 9 × (7 - 5) + 6
2, 2, 3, 10的24点答案:
1: (2 × (3 + 10)) - 2
2: 2 × (3 + 10) - 2
3: (2 × (10 + 3)) - 2
4: 2 × (10 + 3) - 2
5: (3 + 10) × 2 - 2
6: ((3 + 10) × 2) - 2
7: (10 + 3) × 2 - 2
8: ((10 + 3) × 2) - 2