1 10 10 6 ,这道24点怎么算?

1, 10, 9, 6的24点答案：
只有这个
1: (1 + 10 ÷ 6) × 9
2: (1 + (10 ÷ 6)) × 9
3: 10 - 1 + 9 + 6
4: (10 - 1) + 9 + 6
5: (10 - 1 + 9) + 6
6: ((10 - 1) + 9) + 6
7: 10 - 1 +(9 + 6)
8: (10 - 1) + (9 + 6)
9: (10 - (1 - 9)) + 6
10: 10 - (1 - 9) + 6
11: 10 - (1 - (9 + 6))
12: 10 - (1 - 9 - 6)
13: 10 - ((1 - 9) - 6)
14: 10 - 1 + 6 + 9
15: (10 - 1) + 6 + 9
16: (10 - 1 + 6) + 9
17: ((10 - 1) + 6) + 9
18: 10 - 1 +(6 + 9)
19: (10 - 1) + (6 + 9)
20: (10 - (1 - 6)) + 9
21: 10 - (1 - 6) + 9
22: 10 - (1 - (6 + 9))
23: 10 - (1 - 6 - 9)
24: 10 - ((1 - 6) - 9)
25: 10 + 9 - 1 + 6
26: (10 + 9) - 1 + 6
27: (10 + 9 - 1) + 6
28: ((10 + 9) - 1) + 6
29: (10 + (9 - 1)) + 6
30: 10 + (9 - 1) + 6
31: 10 + (9 - 1 + 6)
32: 10 + ((9 - 1) + 6)
33: 10 + (9 - (1 - 6))
34: 10 + 9 -(1 - 6)
35: (10 + 9) - (1 - 6)
36: 10 + 9 + 6 - 1
37: (10 + 9) + 6 - 1
38: (10 + 9 + 6) - 1
39: ((10 + 9) + 6) - 1
40: (10 + (9 + 6)) - 1
41: 10 + (9 + 6) - 1
42: 10 + (9 + 6 - 1)
43: 10 + ((9 + 6) - 1)
44: 10 + (9 + (6 - 1))
45: 10 + 9 +(6 - 1)
46: (10 + 9) + (6 - 1)
47: 10 + 6 - 1 + 9
48: (10 + 6) - 1 + 9
49: (10 + 6 - 1) + 9
50: ((10 + 6) - 1) + 9
51: (10 + (6 - 1)) + 9
52: 10 + (6 - 1) + 9
53: 10 + (6 - 1 + 9)
54: 10 + ((6 - 1) + 9)
55: 10 + (6 - (1 - 9))
56: 10 + 6 -(1 - 9)
57: (10 + 6) - (1 - 9)
58: (10 ÷ 6 + 1) × 9
59: ((10 ÷ 6) + 1) × 9
60: 10 + 6 + 9 - 1
61: (10 + 6) + 9 - 1
62: (10 + 6 + 9) - 1
63: ((10 + 6) + 9) - 1
64: (10 + (6 + 9)) - 1
65: 10 + (6 + 9) - 1
66: 10 + (6 + 9 - 1)
67: 10 + ((6 + 9) - 1)
68: 10 + (6 + (9 - 1))
69: 10 + 6 +(9 - 1)
70: (10 + 6) + (9 - 1)
71: 9 - 1 + 10 + 6
72: (9 - 1) + 10 + 6
73: (9 - 1 + 10) + 6
74: ((9 - 1) + 10) + 6
75: 9 - 1 +(10 + 6)
76: (9 - 1) + (10 + 6)
77: (9 - (1 - 10)) + 6
78: 9 - (1 - 10) + 6
79: 9 - (1 - (10 + 6))
80: 9 - (1 - 10 - 6)
81: 9 - ((1 - 10) - 6)
82: 9 × (1 + 10 ÷ 6)
83: 9 × (1 + (10 ÷ 6))
84: 9 - 1 + 6 + 10
85: (9 - 1) + 6 + 10
86: (9 - 1 + 6) + 10
87: ((9 - 1) + 6) + 10
88: 9 - 1 +(6 + 10)
89: (9 - 1) + (6 + 10)
90: (9 - (1 - 6)) + 10
91: 9 - (1 - 6) + 10
92: 9 - (1 - (6 + 10))
93: 9 - (1 - 6 - 10)
94: 9 - ((1 - 6) - 10)
95: 9 + 10 - 1 + 6
96: (9 + 10) - 1 + 6
97: (9 + 10 - 1) + 6
98: ((9 + 10) - 1) + 6
99: (9 + (10 - 1)) + 6
100: 9 + (10 - 1) + 6
101: 9 + (10 - 1 + 6)
102: 9 + ((10 - 1) + 6)
103: 9 + (10 - (1 - 6))
104: 9 + 10 -(1 - 6)
105: (9 + 10) - (1 - 6)
106: 9 + 10 + 6 - 1
107: (9 + 10) + 6 - 1
108: (9 + 10 + 6) - 1
109: ((9 + 10) + 6) - 1
110: (9 + (10 + 6)) - 1
111: 9 + (10 + 6) - 1
112: 9 + (10 + 6 - 1)
113: 9 + ((10 + 6) - 1)
114: 9 + (10 + (6 - 1))
115: 9 + 10 +(6 - 1)
116: (9 + 10) + (6 - 1)
117: 9 × (10 ÷ 6 + 1)
118: 9 × ((10 ÷ 6) + 1)
119: 9 + 6 - 1 + 10
120: (9 + 6) - 1 + 10
121: (9 + 6 - 1) + 10
122: ((9 + 6) - 1) + 10
123: (9 + (6 - 1)) + 10
124: 9 + (6 - 1) + 10
125: 9 + (6 - 1 + 10)
126: 9 + ((6 - 1) + 10)
127: 9 + (6 - (1 - 10))
128: 9 + 6 -(1 - 10)
129: (9 + 6) - (1 - 10)
130: 9 + 6 + 10 - 1
131: (9 + 6) + 10 - 1
132: (9 + 6 + 10) - 1
133: ((9 + 6) + 10) - 1
134: (9 + (6 + 10)) - 1
135: 9 + (6 + 10) - 1
136: 9 + (6 + 10 - 1)
137: 9 + ((6 + 10) - 1)
138: 9 + (6 + (10 - 1))
139: 9 + 6 +(10 - 1)
140: (9 + 6) + (10 - 1)
141: 6 - 1 + 10 + 9
142: (6 - 1) + 10 + 9
143: (6 - 1 + 10) + 9
144: ((6 - 1) + 10) + 9
145: 6 - 1 +(10 + 9)
146: (6 - 1) + (10 + 9)
147: (6 - (1 - 10)) + 9
148: 6 - (1 - 10) + 9
149: 6 - (1 - (10 + 9))
150: 6 - (1 - 10 - 9)
151: 6 - ((1 - 10) - 9)
152: 6 - 1 + 9 + 10
153: (6 - 1) + 9 + 10
154: (6 - 1 + 9) + 10
155: ((6 - 1) + 9) + 10
156: 6 - 1 +(9 + 10)
157: (6 - 1) + (9 + 10)
158: (6 - (1 - 9)) + 10
159: 6 - (1 - 9) + 10
160: 6 - (1 - (9 + 10))
161: 6 - (1 - 9 - 10)
162: 6 - ((1 - 9) - 10)
163: 6 + 10 - 1 + 9
164: (6 + 10) - 1 + 9
165: (6 + 10 - 1) + 9
166: ((6 + 10) - 1) + 9
167: (6 + (10 - 1)) + 9
168: 6 + (10 - 1) + 9
169: 6 + (10 - 1 + 9)
170: 6 + ((10 - 1) + 9)
171: 6 + (10 - (1 - 9))
172: 6 + 10 -(1 - 9)
173: (6 + 10) - (1 - 9)
174: 6 + 10 + 9 - 1
175: (6 + 10) + 9 - 1
176: (6 + 10 + 9) - 1
177: ((6 + 10) + 9) - 1
178: (6 + (10 + 9)) - 1
179: 6 + (10 + 9) - 1
180: 6 + (10 + 9 - 1)
181: 6 + ((10 + 9) - 1)
182: 6 + (10 + (9 - 1))
183: 6 + 10 +(9 - 1)
184: (6 + 10) + (9 - 1)
185: 6 + 9 - 1 + 10
186: (6 + 9) - 1 + 10
187: (6 + 9 - 1) + 10
188: ((6 + 9) - 1) + 10
189: (6 + (9 - 1)) + 10
190: 6 + (9 - 1) + 10
191: 6 + (9 - 1 + 10)
192: 6 + ((9 - 1) + 10)
193: 6 + (9 - (1 - 10))
194: 6 + 9 -(1 - 10)
195: (6 + 9) - (1 - 10)
196: 6 + 9 + 10 - 1
197: (6 + 9) + 10 - 1
198: (6 + 9 + 10) - 1
199: ((6 + 9) + 10) - 1
200: (6 + (9 + 10)) - 1
201: 6 + (9 + 10) - 1
202: 6 + (9 + 10 - 1)
203: 6 + ((9 + 10) - 1)
204: 6 + (9 + (10 - 1))
205: 6 + 9 +(10 - 1)
206: (6 + 9) + (10 - 1)

打折的计算方法有以下：
1、原价×（折扣÷10）
例如：原价是70元，打三折，就是：70×（3÷10）=21。
例如：打八折，就是：原价×80%。
2、原价×折扣/10
例如：原价是40元，打五折，就是：40×5/10 =20。
3、原价×0折扣
列如：原价是100元，打一折，就是：100×01=10。
打折的特征有以下：
1、打折是商品购销中的让利，发生在购销双方当事人之间，是卖方给予买方的价格优惠。
2、给予或者接受折扣都必须明示并如实入帐，在入帐方式上，要求给予折扣的应冲减营业收入．收受折扣的应冲减成本。
3、打折的两种形式。
（1）支付价款时对价款总额按一定比例即时予以扣除。
（2）在买方已支付价款总额后卖方再按一定比例予以退还部分价款。

答：如果是有人打电话给你说或者上门跟你推销那这就是假的！这是假的！这是假的！重要的事情说三遍！不要被骗了，除非是官网，就是是官网也要谨慎谨慎再谨慎！毕竟网上套路多！网上有很多例子了，都是跟你一样相似的！都是被骗了！如果你自己支付了！那你可以去申诉钱回来！把你被骗的经过和一些支付截图这些资料准备好！去申诉要回来！希望你还没有支付！当然，网上的骗局很多，不止这一个！所以不要轻易相信网上叫你支付的任何东西！以上是我的回答，希望对你有帮助哦！

1: 10 + 11 ÷ 12 + 13
2: (10 + 11 ÷ 12) + 13
3: (10 + (11 ÷ 12)) + 13
4: 10 + (11 ÷ 12) + 13
5: 10 + (11 ÷ 12 + 13)
6: 10 + ((11 ÷ 12) + 13)
7: 10 - 11 + 12 + 13
8: (10 - 11) + 12 + 13
9: (10 - 11 + 12) + 13
10: ((10 - 11) + 12) + 13
11: 10 - 11 +(12 + 13)
12: (10 - 11) + (12 + 13)
13: (10 - (11 - 12)) + 13
14: 10 - (11 - 12) + 13
15: 10 - (11 - (12 + 13))
16: 10 - (11 - 12 - 13)
17: 10 - ((11 - 12) - 13)
18: 10 ÷ 11 × 12 + 13
19: (10 ÷ 11) × 12 + 13
20: (10 ÷ 11 × 12) + 13
21: ((10 ÷ 11) × 12) + 13
22: (10 ÷ (11 ÷ 12)) + 13
23: 10 ÷ (11 ÷ 12) + 13
24: 10 - 11 + 13 + 12
25: (10 - 11) + 13 + 12
26: (10 - 11 + 13) + 12
27: ((10 - 11) + 13) + 12
28: 10 - 11 +(13 + 12)
29: (10 - 11) + (13 + 12)
30: (10 - (11 - 13)) + 12
31: 10 - (11 - 13) + 12
32: 10 - (11 - (13 + 12))
33: 10 - (11 - 13 - 12)
34: 10 - ((11 - 13) - 12)
35: 10 + 12 - 11 + 13
36: (10 + 12) - 11 + 13
37: (10 + 12 - 11) + 13
38: ((10 + 12) - 11) + 13
39: (10 + (12 - 11)) + 13
40: 10 + (12 - 11) + 13
41: 10 + (12 - 11 + 13)
42: 10 + ((12 - 11) + 13)
43: 10 + (12 - (11 - 13))
44: 10 + 12 -(11 - 13)
45: (10 + 12) - (11 - 13)
46: 10 + 12 ÷ 11 + 13
47: (10 + 12 ÷ 11) + 13
48: (10 + (12 ÷ 11)) + 13
49: 10 + (12 ÷ 11) + 13
50: 10 + (12 ÷ 11 + 13)
51: 10 + ((12 ÷ 11) + 13)
52: 10 × 12 ÷ 11 + 13
53: (10 × 12) ÷ 11 + 13
54: (10 × 12 ÷ 11) + 13
55: ((10 × 12) ÷ 11) + 13
56: (10 × (12 ÷ 11)) + 13
57: 10 × (12 ÷ 11) + 13
58: 10 + 12 + 13 - 11
59: (10 + 12) + 13 - 11
60: (10 + 12 + 13) - 11
61: ((10 + 12) + 13) - 11
62: (10 + (12 + 13)) - 11
63: 10 + (12 + 13) - 11
64: 10 + (12 + 13 - 11)
65: 10 + ((12 + 13) - 11)
66: 10 + (12 + (13 - 11))
67: 10 + 12 +(13 - 11)
68: (10 + 12) + (13 - 11)
69: 10 + 13 + 11 ÷ 12
70: (10 + 13) + 11 ÷ 12
71: 10 + (13 + 11 ÷ 12)
72: 10 + (13 + (11 ÷ 12))
73: 10 + 13 +(11 ÷ 12)
74: (10 + 13) + (11 ÷ 12)
75: 10 + 13 - 11 + 12
76: (10 + 13) - 11 + 12
77: (10 + 13 - 11) + 12
78: ((10 + 13) - 11) + 12
79: (10 + (13 - 11)) + 12
80: 10 + (13 - 11) + 12
81: 10 + (13 - 11 + 12)
82: 10 + ((13 - 11) + 12)
83: 10 + (13 - (11 - 12))
84: 10 + 13 -(11 - 12)
85: (10 + 13) - (11 - 12)
86: 10 + 13 + 12 - 11
87: (10 + 13) + 12 - 11
88: (10 + 13 + 12) - 11
89: ((10 + 13) + 12) - 11
90: (10 + (13 + 12)) - 11
91: 10 + (13 + 12) - 11
92: 10 + (13 + 12 - 11)
93: 10 + ((13 + 12) - 11)
94: 10 + (13 + (12 - 11))
95: 10 + 13 +(12 - 11)
96: (10 + 13) + (12 - 11)
97: 10 + 13 + 12 ÷ 11
98: (10 + 13) + 12 ÷ 11
99: 10 + (13 + 12 ÷ 11)
100: 10 + (13 + (12 ÷ 11))
101: 10 + 13 +(12 ÷ 11)
102: (10 + 13) + (12 ÷ 11)
103: 11 ÷ 12 + 10 + 13
104: (11 ÷ 12) + 10 + 13
105: (11 ÷ 12 + 10) + 13
106: ((11 ÷ 12) + 10) + 13
107: 11 ÷ 12 +(10 + 13)
108: (11 ÷ 12) + (10 + 13)
109: 11 ÷ 12 + 13 + 10
110: (11 ÷ 12) + 13 + 10
111: (11 ÷ 12 + 13) + 10
112: ((11 ÷ 12) + 13) + 10
113: 11 ÷ 12 +(13 + 10)
114: (11 ÷ 12) + (13 + 10)
115: 12 + 10 - 11 + 13
116: (12 + 10) - 11 + 13
117: (12 + 10 - 11) + 13
118: ((12 + 10) - 11) + 13
119: (12 + (10 - 11)) + 13
120: 12 + (10 - 11) + 13
121: 12 + (10 - 11 + 13)
122: 12 + ((10 - 11) + 13)
123: 12 + (10 - (11 - 13))
124: 12 + 10 -(11 - 13)
125: (12 + 10) - (11 - 13)
126: 12 - 10 ÷ 11 + 13
127: (12 - 10 ÷ 11) + 13
128: (12 - (10 ÷ 11)) + 13
129: 12 - (10 ÷ 11) + 13
130: 12 - (10 ÷ 11 - 13)
131: 12 - ((10 ÷ 11) - 13)
132: 12 × 10 ÷ 11 + 13
133: (12 × 10) ÷ 11 + 13
134: (12 × 10 ÷ 11) + 13
135: ((12 × 10) ÷ 11) + 13
136: (12 × (10 ÷ 11)) + 13
137: 12 × (10 ÷ 11) + 13
138: 12 + 10 + 13 - 11
139: (12 + 10) + 13 - 11
140: (12 + 10 + 13) - 11
141: ((12 + 10) + 13) - 11
142: (12 + (10 + 13)) - 11
143: 12 + (10 + 13) - 11
144: 12 + (10 + 13 - 11)
145: 12 + ((10 + 13) - 11)
146: 12 + (10 + (13 - 11))
147: 12 + 10 +(13 - 11)
148: (12 + 10) + (13 - 11)
149: 12 - 11 + 10 + 13
150: (12 - 11) + 10 + 13
151: (12 - 11 + 10) + 13
152: ((12 - 11) + 10) + 13
153: 12 - 11 +(10 + 13)
154: (12 - 11) + (10 + 13)
155: (12 - (11 - 10)) + 13
156: 12 - (11 - 10) + 13
157: 12 - (11 - (10 + 13))
158: 12 - (11 - 10 - 13)
159: 12 - ((11 - 10) - 13)
160: 12 ÷ 11 + 10 + 13
161: (12 ÷ 11) + 10 + 13
162: (12 ÷ 11 + 10) + 13
163: ((12 ÷ 11) + 10) + 13
164: 12 ÷ 11 +(10 + 13)
165: (12 ÷ 11) + (10 + 13)
166: 12 ÷ 11 × 10 + 13
167: (12 ÷ 11) × 10 + 13
168: (12 ÷ 11 × 10) + 13
169: ((12 ÷ 11) × 10) + 13
170: (12 ÷ (11 ÷ 10)) + 13
171: 12 ÷ (11 ÷ 10) + 13
172: 12 - 11 + 13 + 10
173: (12 - 11) + 13 + 10
174: (12 - 11 + 13) + 10
175: ((12 - 11) + 13) + 10
176: 12 - 11 +(13 + 10)
177: (12 - 11) + (13 + 10)
178: (12 - (11 - 13)) + 10
179: 12 - (11 - 13) + 10
180: 12 - (11 - (13 + 10))
181: 12 - (11 - 13 - 10)
182: 12 - ((11 - 13) - 10)
183: 12 ÷ 11 + 13 + 10
184: (12 ÷ 11) + 13 + 10
185: (12 ÷ 11 + 13) + 10
186: ((12 ÷ 11) + 13) + 10
187: 12 ÷ 11 +(13 + 10)
188: (12 ÷ 11) + (13 + 10)
189: 12 + 13 + 10 - 11
190: (12 + 13) + 10 - 11
191: (12 + 13 + 10) - 11
192: ((12 + 13) + 10) - 11
193: (12 + (13 + 10)) - 11
194: 12 + (13 + 10) - 11
195: 12 + (13 + 10 - 11)
196: 12 + ((13 + 10) - 11)
197: 12 + (13 + (10 - 11))
198: 12 + 13 +(10 - 11)
199: (12 + 13) + (10 - 11)
200: 12 + 13 - 10 ÷ 11
201: (12 + 13) - 10 ÷ 11
202: 12 + (13 - 10 ÷ 11)
203: 12 + (13 - (10 ÷ 11))
204: 12 + 13 -(10 ÷ 11)
205: (12 + 13) - (10 ÷ 11)
206: 12 + 13 - 11 + 10
207: (12 + 13) - 11 + 10
208: (12 + 13 - 11) + 10
209: ((12 + 13) - 11) + 10
210: (12 + (13 - 11)) + 10
211: 12 + (13 - 11) + 10
212: 12 + (13 - 11 + 10)
213: 12 + ((13 - 11) + 10)
214: 12 + (13 - (11 - 10))
215: 12 + 13 -(11 - 10)
216: (12 + 13) - (11 - 10)
217: 13 + 10 + 11 ÷ 12
218: (13 + 10) + 11 ÷ 12
219: 13 + (10 + 11 ÷ 12)
220: 13 + (10 + (11 ÷ 12))
221: 13 + 10 +(11 ÷ 12)
222: (13 + 10) + (11 ÷ 12)
223: 13 + 10 - 11 + 12
224: (13 + 10) - 11 + 12
225: (13 + 10 - 11) + 12
226: ((13 + 10) - 11) + 12
227: (13 + (10 - 11)) + 12
228: 13 + (10 - 11) + 12
229: 13 + (10 - 11 + 12)
230: 13 + ((10 - 11) + 12)
231: 13 + (10 - (11 - 12))
232: 13 + 10 -(11 - 12)
233: (13 + 10) - (11 - 12)
234: 13 + 10 ÷ 11 × 12
235: 13 + (10 ÷ 11) × 12
236: 13 + (10 ÷ 11 × 12)
237: 13 + ((10 ÷ 11) × 12)
238: 13 + (10 ÷ (11 ÷ 12))
239: 13 + 10 ÷(11 ÷ 12)
240: 13 - 10 ÷ 11 + 12
241: (13 - 10 ÷ 11) + 12
242: (13 - (10 ÷ 11)) + 12
243: 13 - (10 ÷ 11) + 12
244: 13 - (10 ÷ 11 - 12)
245: 13 - ((10 ÷ 11) - 12)
246: 13 + 10 + 12 - 11
247: (13 + 10) + 12 - 11
248: (13 + 10 + 12) - 11
249: ((13 + 10) + 12) - 11
250: (13 + (10 + 12)) - 11
251: 13 + (10 + 12) - 11
252: 13 + (10 + 12 - 11)
253: 13 + ((10 + 12) - 11)
254: 13 + (10 + (12 - 11))
255: 13 + 10 +(12 - 11)
256: (13 + 10) + (12 - 11)
257: 13 + 10 + 12 ÷ 11
258: (13 + 10) + 12 ÷ 11
259: 13 + (10 + 12 ÷ 11)
260: 13 + (10 + (12 ÷ 11))
261: 13 + 10 +(12 ÷ 11)
262: (13 + 10) + (12 ÷ 11)
263: 13 + 10 × 12 ÷ 11
264: 13 + (10 × 12) ÷ 11
265: 13 + (10 × 12 ÷ 11)
266: 13 + ((10 × 12) ÷ 11)
267: 13 + (10 × (12 ÷ 11))
268: 13 + 10 ×(12 ÷ 11)
269: 13 - 11 + 10 + 12
270: (13 - 11) + 10 + 12
271: (13 - 11 + 10) + 12
272: ((13 - 11) + 10) + 12
273: 13 - 11 +(10 + 12)
274: (13 - 11) + (10 + 12)
275: (13 - (11 - 10)) + 12
276: 13 - (11 - 10) + 12
277: 13 - (11 - (10 + 12))
278: 13 - (11 - 10 - 12)
279: 13 - ((11 - 10) - 12)
280: 13 + 11 ÷ 12 + 10
281: (13 + 11 ÷ 12) + 10
282: (13 + (11 ÷ 12)) + 10
283: 13 + (11 ÷ 12) + 10
284: 13 + (11 ÷ 12 + 10)
285: 13 + ((11 ÷ 12) + 10)
286: 13 - 11 + 12 + 10
287: (13 - 11) + 12 + 10
288: (13 - 11 + 12) + 10
289: ((13 - 11) + 12) + 10
290: 13 - 11 +(12 + 10)
291: (13 - 11) + (12 + 10)
292: (13 - (11 - 12)) + 10
293: 13 - (11 - 12) + 10
294: 13 - (11 - (12 + 10))
295: 13 - (11 - 12 - 10)
296: 13 - ((11 - 12) - 10)
297: 13 + 12 + 10 - 11
298: (13 + 12) + 10 - 11
299: (13 + 12 + 10) - 11
300: ((13 + 12) + 10) - 11
301: (13 + (12 + 10)) - 11
302: 13 + (12 + 10) - 11
303: 13 + (12 + 10 - 11)
304: 13 + ((12 + 10) - 11)
305: 13 + (12 + (10 - 11))
306: 13 + 12 +(10 - 11)
307: (13 + 12) + (10 - 11)
308: 13 + 12 - 10 ÷ 11
309: (13 + 12) - 10 ÷ 11
310: 13 + (12 - 10 ÷ 11)
311: 13 + (12 - (10 ÷ 11))
312: 13 + 12 -(10 ÷ 11)
313: (13 + 12) - (10 ÷ 11)
314: 13 + 12 × 10 ÷ 11
315: 13 + (12 × 10) ÷ 11
316: 13 + (12 × 10 ÷ 11)
317: 13 + ((12 × 10) ÷ 11)
318: 13 + (12 × (10 ÷ 11))
319: 13 + 12 ×(10 ÷ 11)
320: 13 + 12 - 11 + 10
321: (13 + 12) - 11 + 10
322: (13 + 12 - 11) + 10
323: ((13 + 12) - 11) + 10
324: (13 + (12 - 11)) + 10
325: 13 + (12 - 11) + 10
326: 13 + (12 - 11 + 10)
327: 13 + ((12 - 11) + 10)
328: 13 + (12 - (11 - 10))
329: 13 + 12 -(11 - 10)
330: (13 + 12) - (11 - 10)
331: 13 + 12 ÷ 11 + 10
332: (13 + 12 ÷ 11) + 10
333: (13 + (12 ÷ 11)) + 10
334: 13 + (12 ÷ 11) + 10
335: 13 + (12 ÷ 11 + 10)
336: 13 + ((12 ÷ 11) + 10)
337: 13 + 12 ÷ 11 × 10
338: 13 + (12 ÷ 11) × 10
339: 13 + (12 ÷ 11 × 10)
340: 13 + ((12 ÷ 11) × 10)
341: 13 + (12 ÷ (11 ÷ 10))
342: 13 + 12 ÷(11 ÷ 10)

400到1200年共有: 1200－400＝800年其中能被4整除的年份有:800÷4＝200个，但是整百整千的年份要能被400整除的才是闰年，所以其中不是闰年的是:
500年，600年，700年 900年，1000年，1100年都不是闰年
所以从400年到1200年共有闰年:
200+1-6＝195个

5995。
1199的一半是1199/2=5995，或者1199乘以二分之一得数即为1199的一半，两种方法都可以使用。
一个数减去一半就是这个数除以二，比如四分成两份，一份是二，四减二就等于四除以二，减去一半和除以二结果是一样的，所以我们就用这个数除以二就可以了。

1, 2, 3, 4的24点答案：
1: (1 + 2 + 3) × 4
2: ((1 + 2) + 3) × 4
3: (1 + (2 + 3)) × 4
4: 1 × 2 × 3 × 4
5: (1 × 2) × 3 × 4
6: (1 × 2 × 3) × 4
7: ((1 × 2) × 3) × 4
8: (1 × (2 × 3)) × 4
9: 1 × (2 × 3) × 4
10: 1 × (2 × 3 × 4)
11: 1 × ((2 × 3) × 4)
12: 1 × (2 × (3 × 4))
13: 1 × 2 ×(3 × 4)
14: (1 × 2) × (3 × 4)
15: 1 × 2 × 4 × 3
16: (1 × 2) × 4 × 3
17: (1 × 2 × 4) × 3
18: ((1 × 2) × 4) × 3
19: (1 × (2 × 4)) × 3
20: 1 × (2 × 4) × 3
21: 1 × (2 × 4 × 3)
22: 1 × ((2 × 4) × 3)
23: 1 × (2 × (4 × 3))
24: 1 × 2 ×(4 × 3)
25: (1 × 2) × (4 × 3)
26: (1 + 3 + 2) × 4
27: ((1 + 3) + 2) × 4
28: (1 + (3 + 2)) × 4
29: (1 + 3) × (2 + 4)
30: 1 × 3 × 2 × 4
31: (1 × 3) × 2 × 4
32: (1 × 3 × 2) × 4
33: ((1 × 3) × 2) × 4
34: (1 × (3 × 2)) × 4
35: 1 × (3 × 2) × 4
36: 1 × (3 × 2 × 4)
37: 1 × ((3 × 2) × 4)
38: 1 × (3 × (2 × 4))
39: 1 × 3 ×(2 × 4)
40: (1 × 3) × (2 × 4)
41: (1 + 3) × (4 + 2)
42: 1 × 3 × 4 × 2
43: (1 × 3) × 4 × 2
44: (1 × 3 × 4) × 2
45: ((1 × 3) × 4) × 2
46: (1 × (3 × 4)) × 2
47: 1 × (3 × 4) × 2
48: 1 × (3 × 4 × 2)
49: 1 × ((3 × 4) × 2)
50: 1 × (3 × (4 × 2))
51: 1 × 3 ×(4 × 2)
52: (1 × 3) × (4 × 2)
53: 1 × 4 × 2 × 3
54: (1 × 4) × 2 × 3
55: (1 × 4 × 2) × 3
56: ((1 × 4) × 2) × 3
57: (1 × (4 × 2)) × 3
58: 1 × (4 × 2) × 3
59: 1 × (4 × 2 × 3)
60: 1 × ((4 × 2) × 3)
61: 1 × (4 × (2 × 3))
62: 1 × 4 ×(2 × 3)
63: (1 × 4) × (2 × 3)
64: 1 × 4 × 3 × 2
65: (1 × 4) × 3 × 2
66: (1 × 4 × 3) × 2
67: ((1 × 4) × 3) × 2
68: (1 × (4 × 3)) × 2
69: 1 × (4 × 3) × 2
70: 1 × (4 × 3 × 2)
71: 1 × ((4 × 3) × 2)
72: 1 × (4 × (3 × 2))
73: 1 × 4 ×(3 × 2)
74: (1 × 4) × (3 × 2)
75: (2 + 1 + 3) × 4
76: ((2 + 1) + 3) × 4
77: (2 + (1 + 3)) × 4
78: 2 × 1 × 3 × 4
79: (2 × 1) × 3 × 4
80: (2 × 1 × 3) × 4
81: ((2 × 1) × 3) × 4
82: (2 × (1 × 3)) × 4
83: 2 × (1 × 3) × 4
84: 2 × (1 × 3 × 4)
85: 2 × ((1 × 3) × 4)
86: 2 × (1 × (3 × 4))
87: 2 × 1 ×(3 × 4)
88: (2 × 1) × (3 × 4)
89: 2 ÷ 1 × 3 × 4
90: (2 ÷ 1) × 3 × 4
91: (2 ÷ 1 × 3) × 4
92: ((2 ÷ 1) × 3) × 4
93: 2 ÷ 1 ×(3 × 4)
94: (2 ÷ 1) × (3 × 4)
95: (2 ÷ (1 ÷ 3)) × 4
96: 2 ÷ (1 ÷ 3) × 4
97: 2 ÷ (1 ÷ (3 × 4))
98: 2 ÷ (1 ÷ 3 ÷ 4)
99: 2 ÷ ((1 ÷ 3) ÷ 4)
100: 2 × 1 × 4 × 3
101: (2 × 1) × 4 × 3
102: (2 × 1 × 4) × 3
103: ((2 × 1) × 4) × 3
104: (2 × (1 × 4)) × 3
105: 2 × (1 × 4) × 3
106: 2 × (1 × 4 × 3)
107: 2 × ((1 × 4) × 3)
108: 2 × (1 × (4 × 3))
109: 2 × 1 ×(4 × 3)
110: (2 × 1) × (4 × 3)
111: 2 ÷ 1 × 4 × 3
112: (2 ÷ 1) × 4 × 3
113: (2 ÷ 1 × 4) × 3
114: ((2 ÷ 1) × 4) × 3
115: 2 ÷ 1 ×(4 × 3)
116: (2 ÷ 1) × (4 × 3)
117: (2 ÷ (1 ÷ 4)) × 3
118: 2 ÷ (1 ÷ 4) × 3
119: 2 ÷ (1 ÷ (4 × 3))
120: 2 ÷ (1 ÷ 4 ÷ 3)
121: 2 ÷ ((1 ÷ 4) ÷ 3)
122: (2 + 3 + 1) × 4
123: ((2 + 3) + 1) × 4
124: (2 + (3 + 1)) × 4
125: 2 × 3 × 1 × 4
126: (2 × 3) × 1 × 4
127: (2 × 3 × 1) × 4
128: ((2 × 3) × 1) × 4
129: (2 × (3 × 1)) × 4
130: 2 × (3 × 1) × 4
131: 2 × (3 × 1 × 4)
132: 2 × ((3 × 1) × 4)
133: 2 × (3 × (1 × 4))
134: 2 × 3 ×(1 × 4)
135: (2 × 3) × (1 × 4)
136: 2 × 3 ÷ 1 × 4
137: (2 × 3) ÷ 1 × 4
138: (2 × 3 ÷ 1) × 4
139: ((2 × 3) ÷ 1) × 4
140: (2 × (3 ÷ 1)) × 4
141: 2 × (3 ÷ 1) × 4
142: 2 × (3 ÷ 1 × 4)
143: 2 × ((3 ÷ 1) × 4)
144: 2 × (3 ÷ (1 ÷ 4))
145: 2 × 3 ÷(1 ÷ 4)
146: (2 × 3) ÷ (1 ÷ 4)
147: 2 × 3 × 4 × 1
148: (2 × 3) × 4 × 1
149: (2 × 3 × 4) × 1
150: ((2 × 3) × 4) × 1
151: (2 × (3 × 4)) × 1
152: 2 × (3 × 4) × 1
153: 2 × (3 × 4 × 1)
154: 2 × ((3 × 4) × 1)
155: 2 × (3 × (4 × 1))
156: 2 × 3 ×(4 × 1)
157: (2 × 3) × (4 × 1)
158: 2 × 3 × 4 ÷ 1
159: (2 × 3) × 4 ÷ 1
160: (2 × 3 × 4) ÷ 1
161: ((2 × 3) × 4) ÷ 1
162: (2 × (3 × 4)) ÷ 1
163: 2 × (3 × 4) ÷ 1
164: 2 × (3 × 4 ÷ 1)
165: 2 × ((3 × 4) ÷ 1)
166: 2 × (3 × (4 ÷ 1))
167: 2 × 3 ×(4 ÷ 1)
168: (2 × 3) × (4 ÷ 1)
169: (2 + 4) × (1 + 3)
170: 2 × 4 × 1 × 3
171: (2 × 4) × 1 × 3
172: (2 × 4 × 1) × 3
173: ((2 × 4) × 1) × 3
174: (2 × (4 × 1)) × 3
175: 2 × (4 × 1) × 3
176: 2 × (4 × 1 × 3)
177: 2 × ((4 × 1) × 3)
178: 2 × (4 × (1 × 3))
179: 2 × 4 ×(1 × 3)
180: (2 × 4) × (1 × 3)
181: 2 × 4 ÷ 1 × 3
182: (2 × 4) ÷ 1 × 3
183: (2 × 4 ÷ 1) × 3
184: ((2 × 4) ÷ 1) × 3
185: (2 × (4 ÷ 1)) × 3
186: 2 × (4 ÷ 1) × 3
187: 2 × (4 ÷ 1 × 3)
188: 2 × ((4 ÷ 1) × 3)
189: 2 × (4 ÷ (1 ÷ 3))
190: 2 × 4 ÷(1 ÷ 3)
191: (2 × 4) ÷ (1 ÷ 3)
192: (2 + 4) × (3 + 1)
193: 2 × 4 × 3 × 1
194: (2 × 4) × 3 × 1
195: (2 × 4 × 3) × 1
196: ((2 × 4) × 3) × 1
197: (2 × (4 × 3)) × 1
198: 2 × (4 × 3) × 1
199: 2 × (4 × 3 × 1)
200: 2 × ((4 × 3) × 1)
201: 2 × (4 × (3 × 1))
202: 2 × 4 ×(3 × 1)
203: (2 × 4) × (3 × 1)
204: 2 × 4 × 3 ÷ 1
205: (2 × 4) × 3 ÷ 1
206: (2 × 4 × 3) ÷ 1
207: ((2 × 4) × 3) ÷ 1
208: (2 × (4 × 3)) ÷ 1
209: 2 × (4 × 3) ÷ 1
210: 2 × (4 × 3 ÷ 1)
211: 2 × ((4 × 3) ÷ 1)
212: 2 × (4 × (3 ÷ 1))
213: 2 × 4 ×(3 ÷ 1)
214: (2 × 4) × (3 ÷ 1)
215: (3 + 1 + 2) × 4
216: ((3 + 1) + 2) × 4
217: (3 + (1 + 2)) × 4
218: (3 + 1) × (2 + 4)
219: 3 × 1 × 2 × 4
220: (3 × 1) × 2 × 4
221: (3 × 1 × 2) × 4
222: ((3 × 1) × 2) × 4
223: (3 × (1 × 2)) × 4
224: 3 × (1 × 2) × 4
225: 3 × (1 × 2 × 4)
226: 3 × ((1 × 2) × 4)
227: 3 × (1 × (2 × 4))
228: 3 × 1 ×(2 × 4)
229: (3 × 1) × (2 × 4)
230: 3 ÷ 1 × 2 × 4
231: (3 ÷ 1) × 2 × 4
232: (3 ÷ 1 × 2) × 4
233: ((3 ÷ 1) × 2) × 4
234: 3 ÷ 1 ×(2 × 4)
235: (3 ÷ 1) × (2 × 4)
236: (3 ÷ (1 ÷ 2)) × 4
237: 3 ÷ (1 ÷ 2) × 4
238: 3 ÷ (1 ÷ (2 × 4))
239: 3 ÷ (1 ÷ 2 ÷ 4)
240: 3 ÷ ((1 ÷ 2) ÷ 4)
241: (3 + 1) × (4 + 2)
242: 3 × 1 × 4 × 2
243: (3 × 1) × 4 × 2
244: (3 × 1 × 4) × 2
245: ((3 × 1) × 4) × 2
246: (3 × (1 × 4)) × 2
247: 3 × (1 × 4) × 2
248: 3 × (1 × 4 × 2)
249: 3 × ((1 × 4) × 2)
250: 3 × (1 × (4 × 2))
251: 3 × 1 ×(4 × 2)
252: (3 × 1) × (4 × 2)
253: 3 ÷ 1 × 4 × 2
254: (3 ÷ 1) × 4 × 2
255: (3 ÷ 1 × 4) × 2
256: ((3 ÷ 1) × 4) × 2
257: 3 ÷ 1 ×(4 × 2)
258: (3 ÷ 1) × (4 × 2)
259: (3 ÷ (1 ÷ 4)) × 2
260: 3 ÷ (1 ÷ 4) × 2
261: 3 ÷ (1 ÷ (4 × 2))
262: 3 ÷ (1 ÷ 4 ÷ 2)
263: 3 ÷ ((1 ÷ 4) ÷ 2)
264: (3 + 2 + 1) × 4
265: ((3 + 2) + 1) × 4
266: (3 + (2 + 1)) × 4
267: 3 × 2 × 1 × 4
268: (3 × 2) × 1 × 4
269: (3 × 2 × 1) × 4
270: ((3 × 2) × 1) × 4
271: (3 × (2 × 1)) × 4
272: 3 × (2 × 1) × 4
273: 3 × (2 × 1 × 4)
274: 3 × ((2 × 1) × 4)
275: 3 × (2 × (1 × 4))
276: 3 × 2 ×(1 × 4)
277: (3 × 2) × (1 × 4)
278: 3 × 2 ÷ 1 × 4
279: (3 × 2) ÷ 1 × 4
280: (3 × 2 ÷ 1) × 4
281: ((3 × 2) ÷ 1) × 4
282: (3 × (2 ÷ 1)) × 4
283: 3 × (2 ÷ 1) × 4
284: 3 × (2 ÷ 1 × 4)
285: 3 × ((2 ÷ 1) × 4)
286: 3 × (2 ÷ (1 ÷ 4))
287: 3 × 2 ÷(1 ÷ 4)
288: (3 × 2) ÷ (1 ÷ 4)
289: 3 × 2 × 4 × 1
290: (3 × 2) × 4 × 1
291: (3 × 2 × 4) × 1
292: ((3 × 2) × 4) × 1
293: (3 × (2 × 4)) × 1
294: 3 × (2 × 4) × 1
295: 3 × (2 × 4 × 1)
296: 3 × ((2 × 4) × 1)
297: 3 × (2 × (4 × 1))
298: 3 × 2 ×(4 × 1)
299: (3 × 2) × (4 × 1)
300: 3 × 2 × 4 ÷ 1
301: (3 × 2) × 4 ÷ 1
302: (3 × 2 × 4) ÷ 1
303: ((3 × 2) × 4) ÷ 1
304: (3 × (2 × 4)) ÷ 1
305: 3 × (2 × 4) ÷ 1
306: 3 × (2 × 4 ÷ 1)
307: 3 × ((2 × 4) ÷ 1)
308: 3 × (2 × (4 ÷ 1))
309: 3 × 2 ×(4 ÷ 1)
310: (3 × 2) × (4 ÷ 1)
311: 3 × 4 × 1 × 2
312: (3 × 4) × 1 × 2
313: (3 × 4 × 1) × 2
314: ((3 × 4) × 1) × 2
315: (3 × (4 × 1)) × 2
316: 3 × (4 × 1) × 2
317: 3 × (4 × 1 × 2)
318: 3 × ((4 × 1) × 2)
319: 3 × (4 × (1 × 2))
320: 3 × 4 ×(1 × 2)
321: (3 × 4) × (1 × 2)
322: 3 × 4 ÷ 1 × 2
323: (3 × 4) ÷ 1 × 2
324: (3 × 4 ÷ 1) × 2
325: ((3 × 4) ÷ 1) × 2
326: (3 × (4 ÷ 1)) × 2
327: 3 × (4 ÷ 1) × 2
328: 3 × (4 ÷ 1 × 2)
329: 3 × ((4 ÷ 1) × 2)
330: 3 × (4 ÷ (1 ÷ 2))
331: 3 × 4 ÷(1 ÷ 2)
332: (3 × 4) ÷ (1 ÷ 2)
333: 3 × 4 × 2 × 1
334: (3 × 4) × 2 × 1
335: (3 × 4 × 2) × 1
336: ((3 × 4) × 2) × 1
337: (3 × (4 × 2)) × 1
338: 3 × (4 × 2) × 1
339: 3 × (4 × 2 × 1)
340: 3 × ((4 × 2) × 1)
341: 3 × (4 × (2 × 1))
342: 3 × 4 ×(2 × 1)
343: (3 × 4) × (2 × 1)
344: 3 × 4 × 2 ÷ 1
345: (3 × 4) × 2 ÷ 1
346: (3 × 4 × 2) ÷ 1
347: ((3 × 4) × 2) ÷ 1
348: (3 × (4 × 2)) ÷ 1
349: 3 × (4 × 2) ÷ 1
350: 3 × (4 × 2 ÷ 1)
351: 3 × ((4 × 2) ÷ 1)
352: 3 × (4 × (2 ÷ 1))
353: 3 × 4 ×(2 ÷ 1)
354: (3 × 4) × (2 ÷ 1)
355: 4 × (1 + 2 + 3)
356: 4 × ((1 + 2) + 3)
357: 4 × (1 + (2 + 3))
358: 4 × 1 × 2 × 3
359: (4 × 1) × 2 × 3
360: (4 × 1 × 2) × 3
361: ((4 × 1) × 2) × 3
362: (4 × (1 × 2)) × 3
363: 4 × (1 × 2) × 3
364: 4 × (1 × 2 × 3)
365: 4 × ((1 × 2) × 3)
366: 4 × (1 × (2 × 3))
367: 4 × 1 ×(2 × 3)
368: (4 × 1) × (2 × 3)
369: 4 ÷ 1 × 2 × 3
370: (4 ÷ 1) × 2 × 3
371: (4 ÷ 1 × 2) × 3
372: ((4 ÷ 1) × 2) × 3
373: 4 ÷ 1 ×(2 × 3)
374: (4 ÷ 1) × (2 × 3)
375: (4 ÷ (1 ÷ 2)) × 3
376: 4 ÷ (1 ÷ 2) × 3
377: 4 ÷ (1 ÷ (2 × 3))
378: 4 ÷ (1 ÷ 2 ÷ 3)
379: 4 ÷ ((1 ÷ 2) ÷ 3)
380: 4 × (1 + 3 + 2)
381: 4 × ((1 + 3) + 2)
382: 4 × (1 + (3 + 2))
383: 4 × 1 × 3 × 2
384: (4 × 1) × 3 × 2
385: (4 × 1 × 3) × 2
386: ((4 × 1) × 3) × 2
387: (4 × (1 × 3)) × 2
388: 4 × (1 × 3) × 2
389: 4 × (1 × 3 × 2)
390: 4 × ((1 × 3) × 2)
391: 4 × (1 × (3 × 2))
392: 4 × 1 ×(3 × 2)
393: (4 × 1) × (3 × 2)
394: 4 ÷ 1 × 3 × 2
395: (4 ÷ 1) × 3 × 2
396: (4 ÷ 1 × 3) × 2
397: ((4 ÷ 1) × 3) × 2
398: 4 ÷ 1 ×(3 × 2)
399: (4 ÷ 1) × (3 × 2)
400: (4 ÷ (1 ÷ 3)) × 2
401: 4 ÷ (1 ÷ 3) × 2
402: 4 ÷ (1 ÷ (3 × 2))
403: 4 ÷ (1 ÷ 3 ÷ 2)
404: 4 ÷ ((1 ÷ 3) ÷ 2)
405: (4 + 2) × (1 + 3)
406: 4 × (2 + 1 + 3)
407: 4 × ((2 + 1) + 3)
408: 4 × (2 + (1 + 3))
409: 4 × 2 × 1 × 3
410: (4 × 2) × 1 × 3
411: (4 × 2 × 1) × 3
412: ((4 × 2) × 1) × 3
413: (4 × (2 × 1)) × 3
414: 4 × (2 × 1) × 3
415: 4 × (2 × 1 × 3)
416: 4 × ((2 × 1) × 3)
417: 4 × (2 × (1 × 3))
418: 4 × 2 ×(1 × 3)
419: (4 × 2) × (1 × 3)
420: 4 × 2 ÷ 1 × 3
421: (4 × 2) ÷ 1 × 3
422: (4 × 2 ÷ 1) × 3
423: ((4 × 2) ÷ 1) × 3
424: (4 × (2 ÷ 1)) × 3
425: 4 × (2 ÷ 1) × 3
426: 4 × (2 ÷ 1 × 3)
427: 4 × ((2 ÷ 1) × 3)
428: 4 × (2 ÷ (1 ÷ 3))
429: 4 × 2 ÷(1 ÷ 3)
430: (4 × 2) ÷ (1 ÷ 3)
431: (4 + 2) × (3 + 1)
432: 4 × (2 + 3 + 1)
433: 4 × ((2 + 3) + 1)
434: 4 × (2 + (3 + 1))
435: 4 × 2 × 3 × 1
436: (4 × 2) × 3 × 1
437: (4 × 2 × 3) × 1
438: ((4 × 2) × 3) × 1
439: (4 × (2 × 3)) × 1
440: 4 × (2 × 3) × 1
441: 4 × (2 × 3 × 1)
442: 4 × ((2 × 3) × 1)
443: 4 × (2 × (3 × 1))
444: 4 × 2 ×(3 × 1)
445: (4 × 2) × (3 × 1)
446: 4 × 2 × 3 ÷ 1
447: (4 × 2) × 3 ÷ 1
448: (4 × 2 × 3) ÷ 1
449: ((4 × 2) × 3) ÷ 1
450: (4 × (2 × 3)) ÷ 1
451: 4 × (2 × 3) ÷ 1
452: 4 × (2 × 3 ÷ 1)
453: 4 × ((2 × 3) ÷ 1)
454: 4 × (2 × (3 ÷ 1))
455: 4 × 2 ×(3 ÷ 1)
456: (4 × 2) × (3 ÷ 1)
457: 4 × (3 + 1 + 2)
458: 4 × ((3 + 1) + 2)
459: 4 × (3 + (1 + 2))
460: 4 × 3 × 1 × 2
461: (4 × 3) × 1 × 2
462: (4 × 3 × 1) × 2
463: ((4 × 3) × 1) × 2
464: (4 × (3 × 1)) × 2
465: 4 × (3 × 1) × 2
466: 4 × (3 × 1 × 2)
467: 4 × ((3 × 1) × 2)
468: 4 × (3 × (1 × 2))
469: 4 × 3 ×(1 × 2)
470: (4 × 3) × (1 × 2)
471: 4 × 3 ÷ 1 × 2
472: (4 × 3) ÷ 1 × 2
473: (4 × 3 ÷ 1) × 2
474: ((4 × 3) ÷ 1) × 2
475: (4 × (3 ÷ 1)) × 2
476: 4 × (3 ÷ 1) × 2
477: 4 × (3 ÷ 1 × 2)
478: 4 × ((3 ÷ 1) × 2)
479: 4 × (3 ÷ (1 ÷ 2))
480: 4 × 3 ÷(1 ÷ 2)
481: (4 × 3) ÷ (1 ÷ 2)
482: 4 × (3 + 2 + 1)
483: 4 × ((3 + 2) + 1)
484: 4 × (3 + (2 + 1))
485: 4 × 3 × 2 × 1
486: (4 × 3) × 2 × 1
487: (4 × 3 × 2) × 1
488: ((4 × 3) × 2) × 1
489: (4 × (3 × 2)) × 1
490: 4 × (3 × 2) × 1
491: 4 × (3 × 2 × 1)
492: 4 × ((3 × 2) × 1)
493: 4 × (3 × (2 × 1))
494: 4 × 3 ×(2 × 1)
495: (4 × 3) × (2 × 1)
496: 4 × 3 × 2 ÷ 1
497: (4 × 3) × 2 ÷ 1
498: (4 × 3 × 2) ÷ 1
499: ((4 × 3) × 2) ÷ 1
500: (4 × (3 × 2)) ÷ 1
501: 4 × (3 × 2) ÷ 1
502: 4 × (3 × 2 ÷ 1)
503: 4 × ((3 × 2) ÷ 1)
504: 4 × (3 × (2 ÷ 1))
505: 4 × 3 ×(2 ÷ 1)
506: (4 × 3) × (2 ÷ 1)
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