4, 9, 5, 7的24点答案：
1: 4 × 9 -(5 + 7)
2: (4 × 9) - (5 + 7)
3: 4 × 9 - 5 - 7
4: (4 × 9) - 5 - 7
5: (4 × 9 - 5) - 7
6: ((4 × 9) - 5) - 7
7: 4 × 9 -(7 + 5)
8: (4 × 9) - (7 + 5)
9: 4 × 9 - 7 - 5
10: (4 × 9) - 7 - 5
11: (4 × 9 - 7) - 5
12: ((4 × 9) - 7) - 5
13: 4 × 7 - 9 + 5
14: (4 × 7) - 9 + 5
15: (4 × 7 - 9) + 5
16: ((4 × 7) - 9) + 5
17: 4 × 7 -(9 - 5)
18: (4 × 7) - (9 - 5)
19: 4 × 7 + 5 - 9
20: (4 × 7) + 5 - 9
21: (4 × 7 + 5) - 9
22: ((4 × 7) + 5) - 9
23: 4 × 7 +(5 - 9)
24: (4 × 7) + (5 - 9)
25: 9 × 4 -(5 + 7)
26: (9 × 4) - (5 + 7)
27: 9 × 4 - 5 - 7
28: (9 × 4) - 5 - 7
29: (9 × 4 - 5) - 7
30: ((9 × 4) - 5) - 7
31: 9 - (4 - 7) × 5
32: 9 - ((4 - 7) × 5)
33: 9 × 4 -(7 + 5)
34: (9 × 4) - (7 + 5)
35: 9 × 4 - 7 - 5
36: (9 × 4) - 7 - 5
37: (9 × 4 - 7) - 5
38: ((9 × 4) - 7) - 5
39: 9 - (5 × (4 - 7))
40: 9 - 5 ×(4 - 7)
41: 9 + (5 × (7 - 4))
42: 9 + 5 ×(7 - 4)
43: (9 - 5) × 7 - 4
44: ((9 - 5) × 7) - 4
45: 9 + (7 - 4) × 5
46: 9 + ((7 - 4) × 5)
47: 5 + 4 × 7 - 9
48: (5 + 4 × 7) - 9
49: (5 + (4 × 7)) - 9
50: 5 + (4 × 7) - 9
51: 5 + (4 × 7 - 9)
52: 5 + ((4 × 7) - 9)
53: 5 - 9 + 4 × 7
54: (5 - 9) + 4 × 7
55: 5 - 9 +(4 × 7)
56: (5 - 9) + (4 × 7)
57: 5 - (9 - 4 × 7)
58: 5 - (9 - (4 × 7))
59: 5 - 9 + 7 × 4
60: (5 - 9) + 7 × 4
61: 5 - 9 +(7 × 4)
62: (5 - 9) + (7 × 4)
63: 5 - (9 - 7 × 4)
64: 5 - (9 - (7 × 4))
65: 5 + 7 × 4 - 9
66: (5 + 7 × 4) - 9
67: (5 + (7 × 4)) - 9
68: 5 + (7 × 4) - 9
69: 5 + (7 × 4 - 9)
70: 5 + ((7 × 4) - 9)
71: (5 × (7 - 4)) + 9
72: 5 × (7 - 4) + 9
73: 7 × 4 - 9 + 5
74: (7 × 4) - 9 + 5
75: (7 × 4 - 9) + 5
76: ((7 × 4) - 9) + 5
77: 7 × 4 -(9 - 5)
78: (7 × 4) - (9 - 5)
79: (7 - 4) × 5 + 9
80: ((7 - 4) × 5) + 9
81: 7 × 4 + 5 - 9
82: (7 × 4) + 5 - 9
83: (7 × 4 + 5) - 9
84: ((7 × 4) + 5) - 9
85: 7 × 4 +(5 - 9)
86: (7 × 4) + (5 - 9)
87: (7 × (9 - 5)) - 4
88: 7 × (9 - 5) - 4
2, 9, 5, 8的24点答案：
1: 2 + 9 + 5 + 8
2: (2 + 9) + 5 + 8
3: (2 + 9 + 5) + 8
4: ((2 + 9) + 5) + 8
5: (2 + (9 + 5)) + 8
6: 2 + (9 + 5) + 8
7: 2 + (9 + 5 + 8)
8: 2 + ((9 + 5) + 8)
9: 2 + (9 + (5 + 8))
10: 2 + 9 +(5 + 8)
11: (2 + 9) + (5 + 8)
12: 2 × (9 - 5 + 8)
13: 2 × ((9 - 5) + 8)
14: 2 × (9 - (5 - 8))
15: 2 + 9 + 8 + 5
16: (2 + 9) + 8 + 5
17: (2 + 9 + 8) + 5
18: ((2 + 9) + 8) + 5
19: (2 + (9 + 8)) + 5
20: 2 + (9 + 8) + 5
21: 2 + (9 + 8 + 5)
22: 2 + ((9 + 8) + 5)
23: 2 + (9 + (8 + 5))
24: 2 + 9 +(8 + 5)
25: (2 + 9) + (8 + 5)
26: 2 × (9 + 8 - 5)
27: 2 × ((9 + 8) - 5)
28: 2 × (9 + (8 - 5))
29: 2 + 5 + 9 + 8
30: (2 + 5) + 9 + 8
31: (2 + 5 + 9) + 8
32: ((2 + 5) + 9) + 8
33: (2 + (5 + 9)) + 8
34: 2 + (5 + 9) + 8
35: 2 + (5 + 9 + 8)
36: 2 + ((5 + 9) + 8)
37: 2 + (5 + (9 + 8))
38: 2 + 5 +(9 + 8)
39: (2 + 5) + (9 + 8)
40: 2 + 5 + 8 + 9
41: (2 + 5) + 8 + 9
42: (2 + 5 + 8) + 9
43: ((2 + 5) + 8) + 9
44: (2 + (5 + 8)) + 9
45: 2 + (5 + 8) + 9
46: 2 + (5 + 8 + 9)
47: 2 + ((5 + 8) + 9)
48: 2 + (5 + (8 + 9))
49: 2 + 5 +(8 + 9)
50: (2 + 5) + (8 + 9)
51: 2 + 8 + 9 + 5
52: (2 + 8) + 9 + 5
53: (2 + 8 + 9) + 5
54: ((2 + 8) + 9) + 5
55: (2 + (8 + 9)) + 5
56: 2 + (8 + 9) + 5
57: 2 + (8 + 9 + 5)
58: 2 + ((8 + 9) + 5)
59: 2 + (8 + (9 + 5))
60: 2 + 8 +(9 + 5)
61: (2 + 8) + (9 + 5)
62: 2 × (8 + 9 - 5)
63: 2 × ((8 + 9) - 5)
64: 2 × (8 + (9 - 5))
65: 2 + 8 + 5 + 9
66: (2 + 8) + 5 + 9
67: (2 + 8 + 5) + 9
68: ((2 + 8) + 5) + 9
69: (2 + (8 + 5)) + 9
70: 2 + (8 + 5) + 9
71: 2 + (8 + 5 + 9)
72: 2 + ((8 + 5) + 9)
73: 2 + (8 + (5 + 9))
74: 2 + 8 +(5 + 9)
75: (2 + 8) + (5 + 9)
76: (2 - 8) × (5 - 9)
77: 2 × (8 - 5 + 9)
78: 2 × ((8 - 5) + 9)
79: 2 × (8 - (5 - 9))
80: 9 + 2 + 5 + 8
81: (9 + 2) + 5 + 8
82: (9 + 2 + 5) + 8
83: ((9 + 2) + 5) + 8
84: (9 + (2 + 5)) + 8
85: 9 + (2 + 5) + 8
86: 9 + (2 + 5 + 8)
87: 9 + ((2 + 5) + 8)
88: 9 + (2 + (5 + 8))
89: 9 + 2 +(5 + 8)
90: (9 + 2) + (5 + 8)
91: 9 + 2 + 8 + 5
92: (9 + 2) + 8 + 5
93: (9 + 2 + 8) + 5
94: ((9 + 2) + 8) + 5
95: (9 + (2 + 8)) + 5
96: 9 + (2 + 8) + 5
97: 9 + (2 + 8 + 5)
98: 9 + ((2 + 8) + 5)
99: 9 + (2 + (8 + 5))
100: 9 + 2 +(8 + 5)
101: (9 + 2) + (8 + 5)
102: 9 + 5 + 2 + 8
103: (9 + 5) + 2 + 8
104: (9 + 5 + 2) + 8
105: ((9 + 5) + 2) + 8
106: (9 + (5 + 2)) + 8
107: 9 + (5 + 2) + 8
108: 9 + (5 + 2 + 8)
109: 9 + ((5 + 2) + 8)
110: 9 + (5 + (2 + 8))
111: 9 + 5 +(2 + 8)
112: (9 + 5) + (2 + 8)
113: (9 ÷ (5 - 2)) × 8
114: 9 ÷ (5 - 2) × 8
115: 9 ÷ ((5 - 2) ÷ 8)
116: 9 + 5 + 8 + 2
117: (9 + 5) + 8 + 2
118: (9 + 5 + 8) + 2
119: ((9 + 5) + 8) + 2
120: (9 + (5 + 8)) + 2
121: 9 + (5 + 8) + 2
122: 9 + (5 + 8 + 2)
123: 9 + ((5 + 8) + 2)
124: 9 + (5 + (8 + 2))
125: 9 + 5 +(8 + 2)
126: (9 + 5) + (8 + 2)
127: (9 - 5 + 8) × 2
128: ((9 - 5) + 8) × 2
129: (9 - (5 - 8)) × 2
130: (9 - 5) × (8 - 2)
131: 9 + 8 + 2 + 5
132: (9 + 8) + 2 + 5
133: (9 + 8 + 2) + 5
134: ((9 + 8) + 2) + 5
135: (9 + (8 + 2)) + 5
136: 9 + (8 + 2) + 5
137: 9 + (8 + 2 + 5)
138: 9 + ((8 + 2) + 5)
139: 9 + (8 + (2 + 5))
140: 9 + 8 +(2 + 5)
141: (9 + 8) + (2 + 5)
142: 9 + 8 + 5 + 2
143: (9 + 8) + 5 + 2
144: (9 + 8 + 5) + 2
145: ((9 + 8) + 5) + 2
146: (9 + (8 + 5)) + 2
147: 9 + (8 + 5) + 2
148: 9 + (8 + 5 + 2)
149: 9 + ((8 + 5) + 2)
150: 9 + (8 + (5 + 2))
151: 9 + 8 +(5 + 2)
152: (9 + 8) + (5 + 2)
153: (9 + 8 - 5) × 2
154: ((9 + 8) - 5) × 2
155: (9 + (8 - 5)) × 2
156: 9 × (8 ÷ (5 - 2))
157: 9 × 8 ÷(5 - 2)
158: (9 × 8) ÷ (5 - 2)
159: 5 + 2 + 9 + 8
160: (5 + 2) + 9 + 8
161: (5 + 2 + 9) + 8
162: ((5 + 2) + 9) + 8
163: (5 + (2 + 9)) + 8
164: 5 + (2 + 9) + 8
165: 5 + (2 + 9 + 8)
166: 5 + ((2 + 9) + 8)
167: 5 + (2 + (9 + 8))
168: 5 + 2 +(9 + 8)
169: (5 + 2) + (9 + 8)
170: 5 + 2 + 8 + 9
171: (5 + 2) + 8 + 9
172: (5 + 2 + 8) + 9
173: ((5 + 2) + 8) + 9
174: (5 + (2 + 8)) + 9
175: 5 + (2 + 8) + 9
176: 5 + (2 + 8 + 9)
177: 5 + ((2 + 8) + 9)
178: 5 + (2 + (8 + 9))
179: 5 + 2 +(8 + 9)
180: (5 + 2) + (8 + 9)
181: 5 + 9 + 2 + 8
182: (5 + 9) + 2 + 8
183: (5 + 9 + 2) + 8
184: ((5 + 9) + 2) + 8
185: (5 + (9 + 2)) + 8
186: 5 + (9 + 2) + 8
187: 5 + (9 + 2 + 8)
188: 5 + ((9 + 2) + 8)
189: 5 + (9 + (2 + 8))
190: 5 + 9 +(2 + 8)
191: (5 + 9) + (2 + 8)
192: (5 - 9) × (2 - 8)
193: 5 + 9 + 8 + 2
194: (5 + 9) + 8 + 2
195: (5 + 9 + 8) + 2
196: ((5 + 9) + 8) + 2
197: (5 + (9 + 8)) + 2
198: 5 + (9 + 8) + 2
199: 5 + (9 + 8 + 2)
200: 5 + ((9 + 8) + 2)
201: 5 + (9 + (8 + 2))
202: 5 + 9 +(8 + 2)
203: (5 + 9) + (8 + 2)
204: 5 + 8 + 2 + 9
205: (5 + 8) + 2 + 9
206: (5 + 8 + 2) + 9
207: ((5 + 8) + 2) + 9
208: (5 + (8 + 2)) + 9
209: 5 + (8 + 2) + 9
210: 5 + (8 + 2 + 9)
211: 5 + ((8 + 2) + 9)
212: 5 + (8 + (2 + 9))
213: 5 + 8 +(2 + 9)
214: (5 + 8) + (2 + 9)
215: 5 + 8 + 9 + 2
216: (5 + 8) + 9 + 2
217: (5 + 8 + 9) + 2
218: ((5 + 8) + 9) + 2
219: (5 + (8 + 9)) + 2
220: 5 + (8 + 9) + 2
221: 5 + (8 + 9 + 2)
222: 5 + ((8 + 9) + 2)
223: 5 + (8 + (9 + 2))
224: 5 + 8 +(9 + 2)
225: (5 + 8) + (9 + 2)
226: 8 + 2 + 9 + 5
227: (8 + 2) + 9 + 5
228: (8 + 2 + 9) + 5
229: ((8 + 2) + 9) + 5
230: (8 + (2 + 9)) + 5
231: 8 + (2 + 9) + 5
232: 8 + (2 + 9 + 5)
233: 8 + ((2 + 9) + 5)
234: 8 + (2 + (9 + 5))
235: 8 + 2 +(9 + 5)
236: (8 + 2) + (9 + 5)
237: (8 - 2) × (9 - 5)
238: 8 + 2 + 5 + 9
239: (8 + 2) + 5 + 9
240: (8 + 2 + 5) + 9
241: ((8 + 2) + 5) + 9
242: (8 + (2 + 5)) + 9
243: 8 + (2 + 5) + 9
244: 8 + (2 + 5 + 9)
245: 8 + ((2 + 5) + 9)
246: 8 + (2 + (5 + 9))
247: 8 + 2 +(5 + 9)
248: (8 + 2) + (5 + 9)
249: 8 + 9 + 2 + 5
250: (8 + 9) + 2 + 5
251: (8 + 9 + 2) + 5
252: ((8 + 9) + 2) + 5
253: (8 + (9 + 2)) + 5
254: 8 + (9 + 2) + 5
255: 8 + (9 + 2 + 5)
256: 8 + ((9 + 2) + 5)
257: 8 + (9 + (2 + 5))
258: 8 + 9 +(2 + 5)
259: (8 + 9) + (2 + 5)
260: 8 + 9 + 5 + 2
261: (8 + 9) + 5 + 2
262: (8 + 9 + 5) + 2
263: ((8 + 9) + 5) + 2
264: (8 + (9 + 5)) + 2
265: 8 + (9 + 5) + 2
266: 8 + (9 + 5 + 2)
267: 8 + ((9 + 5) + 2)
268: 8 + (9 + (5 + 2))
269: 8 + 9 +(5 + 2)
270: (8 + 9) + (5 + 2)
271: (8 + 9 - 5) × 2
272: ((8 + 9) - 5) × 2
273: (8 + (9 - 5)) × 2
274: 8 × (9 ÷ (5 - 2))
275: 8 × 9 ÷(5 - 2)
276: (8 × 9) ÷ (5 - 2)
277: 8 + 5 + 2 + 9
278: (8 + 5) + 2 + 9
279: (8 + 5 + 2) + 9
280: ((8 + 5) + 2) + 9
281: (8 + (5 + 2)) + 9
282: 8 + (5 + 2) + 9
283: 8 + (5 + 2 + 9)
284: 8 + ((5 + 2) + 9)
285: 8 + (5 + (2 + 9))
286: 8 + 5 +(2 + 9)
287: (8 + 5) + (2 + 9)
288: (8 ÷ (5 - 2)) × 9
289: 8 ÷ (5 - 2) × 9
290: 8 ÷ ((5 - 2) ÷ 9)
291: 8 + 5 + 9 + 2
292: (8 + 5) + 9 + 2
293: (8 + 5 + 9) + 2
294: ((8 + 5) + 9) + 2
295: (8 + (5 + 9)) + 2
296: 8 + (5 + 9) + 2
297: 8 + (5 + 9 + 2)
298: 8 + ((5 + 9) + 2)
299: 8 + (5 + (9 + 2))
300: 8 + 5 +(9 + 2)
301: (8 + 5) + (9 + 2)
302: (8 - 5 + 9) × 2
303: ((8 - 5) + 9) × 2
304: (8 - (5 - 9)) × 2
2, 9, 4, 1的24点答案：
1: 2 × (9 + 4 - 1)
2: 2 × ((9 + 4) - 1)
3: 2 × (9 + (4 - 1))
4: (2 × (9 + 1)) + 4
5: 2 × (9 + 1) + 4
6: 2 × (9 - 1 + 4)
7: 2 × ((9 - 1) + 4)
8: 2 × (9 - (1 - 4))
9: 2 × (4 + 9 - 1)
10: 2 × ((4 + 9) - 1)
11: 2 × (4 + (9 - 1))
12: 2 × (4 - 1 + 9)
13: 2 × ((4 - 1) + 9)
14: 2 × (4 - (1 - 9))
15: (2 × (1 + 9)) + 4
16: 2 × (1 + 9) + 4
17: (9 - (2 + 1)) × 4
18: (9 - 2 - 1) × 4
19: ((9 - 2) - 1) × 4
20: (9 + 4 - 1) × 2
21: ((9 + 4) - 1) × 2
22: (9 + (4 - 1)) × 2
23: (9 + 1) × 2 + 4
24: ((9 + 1) × 2) + 4
25: (9 - (1 + 2)) × 4
26: (9 - 1 - 2) × 4
27: ((9 - 1) - 2) × 4
28: (9 - 1 + 4) × 2
29: ((9 - 1) + 4) × 2
30: (9 - (1 - 4)) × 2
31: 4 + (2 × (9 + 1))
32: 4 + 2 ×(9 + 1)
33: 4 + (2 × (1 + 9))
34: 4 + 2 ×(1 + 9)
35: 4 × (9 - (2 + 1))
36: 4 × (9 - 2 - 1)
37: 4 × ((9 - 2) - 1)
38: 4 + (9 + 1) × 2
39: 4 + ((9 + 1) × 2)
40: (4 + 9 - 1) × 2
41: ((4 + 9) - 1) × 2
42: (4 + (9 - 1)) × 2
43: 4 × (9 - (1 + 2))
44: 4 × (9 - 1 - 2)
45: 4 × ((9 - 1) - 2)
46: 4 + (1 + 9) × 2
47: 4 + ((1 + 9) × 2)
48: (4 - 1 + 9) × 2
49: ((4 - 1) + 9) × 2
50: (4 - (1 - 9)) × 2
51: (1 + 9) × 2 + 4
52: ((1 + 9) × 2) + 4
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