24点(急~~~~~~~~~)

-1 ,3 ,-4, 5这四个数。写出三个24点的算式 紧急 快点!

第1个回答  2010-02-05
1: 1 + 3 + 4 × 5
2: (1 + 3) + 4 × 5
3: 1 + (3 + 4 × 5)
4: 1 + (3 + (4 × 5))
5: 1 + 3 +(4 × 5)
6: (1 + 3) + (4 × 5)
7: 1 + 3 + 5 × 4
8: (1 + 3) + 5 × 4
9: 1 + (3 + 5 × 4)
10: 1 + (3 + (5 × 4))
11: 1 + 3 +(5 × 4)
12: (1 + 3) + (5 × 4)
13: (1 + 3) × 5 + 4
14: ((1 + 3) × 5) + 4
15: 1 + 4 × 5 + 3
16: (1 + 4 × 5) + 3
17: (1 + (4 × 5)) + 3
18: 1 + (4 × 5) + 3
19: 1 + (4 × 5 + 3)
20: 1 + ((4 × 5) + 3)
21: 1 + 5 × 4 + 3
22: (1 + 5 × 4) + 3
23: (1 + (5 × 4)) + 3
24: 1 + (5 × 4) + 3
25: 1 + (5 × 4 + 3)
26: 1 + ((5 × 4) + 3)
27: 3 + 1 + 4 × 5
28: (3 + 1) + 4 × 5
29: 3 + (1 + 4 × 5)
30: 3 + (1 + (4 × 5))
31: 3 + 1 +(4 × 5)
32: (3 + 1) + (4 × 5)
33: 3 + 1 + 5 × 4
34: (3 + 1) + 5 × 4
35: 3 + (1 + 5 × 4)
36: 3 + (1 + (5 × 4))
37: 3 + 1 +(5 × 4)
38: (3 + 1) + (5 × 4)
39: (3 + 1) × 5 + 4
40: ((3 + 1) × 5) + 4
41: 3 × (4 - 1 + 5)
42: 3 × ((4 - 1) + 5)
43: 3 × (4 - (1 - 5))
44: 3 + 4 × 5 + 1
45: (3 + 4 × 5) + 1
46: (3 + (4 × 5)) + 1
47: 3 + (4 × 5) + 1
48: 3 + (4 × 5 + 1)
49: 3 + ((4 × 5) + 1)
50: 3 × (4 + 5 - 1)
51: 3 × ((4 + 5) - 1)
52: 3 × (4 + (5 - 1))
53: 3 × (5 - 1 + 4)
54: 3 × ((5 - 1) + 4)
55: 3 × (5 - (1 - 4))
56: 3 + 5 × 4 + 1
57: (3 + 5 × 4) + 1
58: (3 + (5 × 4)) + 1
59: 3 + (5 × 4) + 1
60: 3 + (5 × 4 + 1)
61: 3 + ((5 × 4) + 1)
62: (3 + 5) × (4 - 1)
63: 3 × (5 + 4 - 1)
64: 3 × ((5 + 4) - 1)
65: 3 × (5 + (4 - 1))
66: 4 + (1 + 3) × 5
67: 4 + ((1 + 3) × 5)
68: (4 - 1) × (3 + 5)
69: (4 - 1 + 5) × 3
70: ((4 - 1) + 5) × 3
71: (4 - (1 - 5)) × 3
72: (4 - 1) × (5 + 3)
73: 4 + (3 + 1) × 5
74: 4 + ((3 + 1) × 5)
75: (4 + 5 - 1) × 3
76: ((4 + 5) - 1) × 3
77: (4 + (5 - 1)) × 3
78: 4 + (5 × (1 + 3))
79: 4 + 5 ×(1 + 3)
80: 4 × 5 + 1 + 3
81: (4 × 5) + 1 + 3
82: (4 × 5 + 1) + 3
83: ((4 × 5) + 1) + 3
84: 4 × 5 +(1 + 3)
85: (4 × 5) + (1 + 3)
86: 4 + (5 × (3 + 1))
87: 4 + 5 ×(3 + 1)
88: 4 × 5 + 3 + 1
89: (4 × 5) + 3 + 1
90: (4 × 5 + 3) + 1
91: ((4 × 5) + 3) + 1
92: 4 × 5 +(3 + 1)
93: (4 × 5) + (3 + 1)
94: (5 × (1 + 3)) + 4
95: 5 × (1 + 3) + 4
96: (5 - 1 + 4) × 3
97: ((5 - 1) + 4) × 3
98: (5 - (1 - 4)) × 3
99: (5 × (3 + 1)) + 4
100: 5 × (3 + 1) + 4
101: (5 + 3) × (4 - 1)
102: (5 + 4 - 1) × 3
103: ((5 + 4) - 1) × 3
104: (5 + (4 - 1)) × 3
105: 5 × 4 + 1 + 3
106: (5 × 4) + 1 + 3
107: (5 × 4 + 1) + 3
108: ((5 × 4) + 1) + 3
109: 5 × 4 +(1 + 3)
110: (5 × 4) + (1 + 3)
111: 5 × 4 + 3 + 1
112: (5 × 4) + 3 + 1
113: (5 × 4 + 3) + 1
114: ((5 × 4) + 3) + 1
115: 5 × 4 +(3 + 1)
116: (5 × 4) + (3 + 1)
第2个回答  2010-02-04
(-1 - (-4)) * (3 + 5)
3 - (-1) - (-4) * 5
3 * (5 - (-4) + (-1))本回答被提问者采纳
第3个回答  2010-02-05
3 * (5 - (-4) + (-1))
(-1 - (-4)) * (3 + 5)
3 - (-1) - (-4) * 5