题目

3 4 1 9 四个数用+ － × ÷,得数为24的算式.智商测试
算式相同者勿答

提问时间：2020-06-25

答案

1:(3 × (4 + 1)) + 9
2:3 × (4 + 1) + 9
3:(3 × (1 + 4)) + 9
4:3 × (1 + 4) + 9
5:3 × 9 - 4 + 1
6:(3 × 9) - 4 + 1
7:(3 × 9 - 4) + 1
8:((3 × 9) - 4) + 1
9:3 × 9 -(4 - 1)
10:(3 × 9) - (4 - 1)
11:3 × 9 + 1 - 4
12:(3 × 9) + 1 - 4
13:(3 × 9 + 1) - 4
14:((3 × 9) + 1) - 4
15:3 × 9 +(1 - 4)
16:(3 × 9) + (1 - 4)
17:(4 + 1) × 3 + 9
18:((4 + 1) × 3) + 9
19:(4 - 1) × 9 - 3
20:((4 - 1) × 9) - 3
21:4 × (1 × 9 - 3)
22:4 × ((1 × 9) - 3)
23:4 × (1 × (9 - 3))
24:4 × 1 ×(9 - 3)
25:(4 × 1) × (9 - 3)
26:4 ÷ 1 ×(9 - 3)
27:(4 ÷ 1) × (9 - 3)
28:4 ÷ (1 ÷ (9 - 3))
29:(4 × (9 - 3)) × 1
30:4 × (9 - 3) × 1
31:4 × (9 - 3 × 1)
32:4 × ((9 - 3) × 1)
33:4 × (9 - (3 × 1))
34:(4 × (9 - 3)) ÷ 1
35:4 × (9 - 3) ÷ 1
36:4 × (9 - 3 ÷ 1)
37:4 × ((9 - 3) ÷ 1)
38:4 × (9 - (3 ÷ 1))
39:4 × (9 - 1 × 3)
40:4 × (9 - (1 × 3))
41:4 × (9 × 1 - 3)
42:4 × ((9 × 1) - 3)
43:4 × (9 ÷ 1 - 3)
44:4 × ((9 ÷ 1) - 3)
45:1 + 3 × 9 - 4
46:(1 + 3 × 9) - 4
47:(1 + (3 × 9)) - 4
48:1 + (3 × 9) - 4
49:1 + (3 × 9 - 4)
50:1 + ((3 × 9) - 4)
51:(1 + 4) × 3 + 9
52:((1 + 4) × 3) + 9
53:1 - 4 + 3 × 9
54:(1 - 4) + 3 × 9
55:1 - 4 +(3 × 9)
56:(1 - 4) + (3 × 9)
57:1 - (4 - 3 × 9)
58:1 - (4 - (3 × 9))
59:1 - 4 + 9 × 3
60:(1 - 4) + 9 × 3
61:1 - 4 +(9 × 3)
62:(1 - 4) + (9 × 3)
63:1 - (4 - 9 × 3)
64:1 - (4 - (9 × 3))
65:1 × (4 × (9 - 3))
66:1 × 4 ×(9 - 3)
67:(1 × 4) × (9 - 3)
68:1 + 9 × 3 - 4
69:(1 + 9 × 3) - 4
70:(1 + (9 × 3)) - 4
71:1 + (9 × 3) - 4
72:1 + (9 × 3 - 4)
73:1 + ((9 × 3) - 4)
74:(1 × 9 - 3) × 4
75:((1 × 9) - 3) × 4
76:(1 × (9 - 3)) × 4
77:1 × (9 - 3) × 4
78:1 × ((9 - 3) × 4)
79:9 + (3 × (4 + 1))
80:9 + 3 ×(4 + 1)
81:(9 - 3) × 4 × 1
82:((9 - 3) × 4) × 1
83:(9 - 3) × (4 × 1)
84:(9 - 3) × 4 ÷ 1
85:((9 - 3) × 4) ÷ 1
86:(9 - 3) × (4 ÷ 1)
87:9 × 3 - 4 + 1
88:(9 × 3) - 4 + 1
89:(9 × 3 - 4) + 1
90:((9 × 3) - 4) + 1
91:9 × 3 -(4 - 1)
92:(9 × 3) - (4 - 1)
93:9 + (3 × (1 + 4))
94:9 + 3 ×(1 + 4)
95:(9 - 3) × 1 × 4
96:(9 - 3 × 1) × 4
97:((9 - 3) × 1) × 4
98:(9 - (3 × 1)) × 4
99:(9 - 3) × (1 × 4)
100:(9 - 3) ÷ 1 × 4
101:(9 - 3 ÷ 1) × 4
102:((9 - 3) ÷ 1) × 4
103:(9 - (3 ÷ 1)) × 4
104:(9 - 3) ÷ (1 ÷ 4)
105:9 × 3 + 1 - 4
106:(9 × 3) + 1 - 4
107:(9 × 3 + 1) - 4
108:((9 × 3) + 1) - 4
109:9 × 3 +(1 - 4)
110:(9 × 3) + (1 - 4)
111:9 + (4 + 1) × 3
112:9 + ((4 + 1) × 3)
113:(9 × (4 - 1)) - 3
114:9 × (4 - 1) - 3
115:(9 - 1 × 3) × 4
116:(9 - (1 × 3)) × 4
117:(9 × 1 - 3) × 4
118:((9 × 1) - 3) × 4
119:(9 ÷ 1 - 3) × 4
120:((9 ÷ 1) - 3) × 4
121:9 + (1 + 4) × 3
122:9 + ((1 + 4) × 3)