帮我算一下24点吧，第一题6，3，9，4.第二题1，5，7，8，那位好心人帮我算一下吧， [email protected]

Question

如题所述

Answer 1

1、(9-6+3）X4=24
2、（7-5+1）X8=24
已发送！

Answer 2

第一题6 3 9 4
(6-4)*(3+9)=24
(6-4)*(9+3)=24
(3-6+9)*4=24
((3-6)+9)*4=24
(3-(6-9))*4=24
(3+9-6)*4=24
((3+9)-6)*4=24
(3+(9-6))*4=24
(3+9)*(6-4)=24
(9-6+3)*4=24
((9-6)+3)*4=24
(9-(6-3))*4=24
(9+3-6)*4=24
((9+3)-6)*4=24
(9+(3-6))*4=24
(9+3)*(6-4)=24
4*(3-6+9)=24
4*((3-6)+9)=24
4*(3-(6-9))=24
4*(3+9-6)=24
4*((3+9)-6)=24
4*(3+(9-6))=24
4*(9-6+3)=24
4*((9-6)+3)=24
4*(9-(6-3))=24
4*(9+3-6)=24
4*((9+3)-6)=24
4*(9+(3-6))=24

第二题1 5 7 8
(1-5+7)*8=24
((1-5)+7)*8=24
(1-(5-7))*8=24
(1+7-5)*8=24
((1+7)-5)*8=24
(1+(7-5))*8=24
(1+7)*(8-5)=24
(7+1-5)*8=24
((7+1)-5)*8=24
(7+(1-5))*8=24
(7+1)*(8-5)=24
(7-5+1)*8=24
((7-5)+1)*8=24
(7-(5-1))*8=24
8*(1-5+7)=24
8*((1-5)+7)=24
8*(1-(5-7))=24
8*(1+7-5)=24
8*((1+7)-5)=24
8*(1+(7-5))=24
(8-5)*(1+7)=24
(8-5)*(7+1)=24
8*(7+1-5)=24
8*((7+1)-5)=24
8*(7+(1-5))=24
8*(7-5+1)=24
8*((7-5)+1)=24
8*(7-(5-1))=24

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Answer 3

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

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

参考资料：http://www.dffy.com/tool/24.htm

Answer 4

1、 (9 - 6 + 3) × 4
2、（7-5+1）*8