1.如果定义一种新的运算为a&b=b/a+a/b,则(-3)&5=?2.(-2/3)*(-8/5)+(-0.25)3.现在有四个有理数2,6,-3,-5,添加+,-,/,*和括号等符号进行运算,写出三种不同的运算试,使其结果等于24.

Question

1.如果定义一种新的运算为a&b=b/a+a/b,则(-3)&5=?
2.(-2/3)*(-8/5)+(-0.25)
3.现在有四个有理数2,6,-3,-5,添加+,-,/,*和括号等符号进行运算,写出三种不同的运算试,使其结果等于24.

Answer 1

1.a&b=b/a+a/b
则(-3)&5=5/(-3)+(-3)/5=-(3/5)-(5/3)=-34/15
2.(-2/3)*(-8/5)+(-0.25)
=(2/3)*(8/5)-1/4
=16/15-1/4
=74/60-15/60
=59/60
3.3=-(-3),5=-(-5)
1:2 × (6 × (5 - 3))
2:2 × 6 ×(5 - 3)
3:(2 × 6) × (5 - 3)
4:(2 - 3 + 5) × 6
5:((2 - 3) + 5) × 6
6:(2 - (3 - 5)) × 6
7:2 × 3 × 5 - 6
8:(2 × 3) × 5 - 6
9:(2 × 3 × 5) - 6
10:((2 × 3) × 5) - 6
11:(2 × (3 × 5)) - 6
12:2 × (3 × 5) - 6
13:(2 + 5 - 3) × 6
14:((2 + 5) - 3) × 6
15:(2 + (5 - 3)) × 6
16:(2 × (5 - 3)) × 6
17:2 × (5 - 3) × 6
18:2 × ((5 - 3) × 6)
19:2 × 5 × 3 - 6
20:(2 × 5) × 3 - 6
21:(2 × 5 × 3) - 6
22:((2 × 5) × 3) - 6
23:(2 × (5 × 3)) - 6
24:2 × (5 × 3) - 6
25:6 × (2 - 3 + 5)
26:6 × ((2 - 3) + 5)
27:6 × (2 - (3 - 5))
28:6 ÷ 2 ×(3 + 5)
29:(6 ÷ 2) × (3 + 5)
30:6 ÷ (2 ÷ (3 + 5))
31:6 × (2 + 5 - 3)
32:6 × ((2 + 5) - 3)
33:6 × (2 + (5 - 3))
34:6 × (2 × (5 - 3))
35:6 × 2 ×(5 - 3)
36:(6 × 2) × (5 - 3)
37:(6 ÷ 2 + 5) × 3
38:((6 ÷ 2) + 5) × 3
39:6 ÷ 2 ×(5 + 3)
40:(6 ÷ 2) × (5 + 3)
41:6 ÷ (2 ÷ (5 + 3))
42:(6 × (3 + 5)) ÷ 2
43:6 × (3 + 5) ÷ 2
44:6 × ((3 + 5) ÷ 2)
45:6 × (5 + 2 - 3)
46:6 × ((5 + 2) - 3)
47:6 × (5 + (2 - 3))
48:6 × 5 - 2 × 3
49:(6 × 5) - 2 × 3
50:6 × 5 -(2 × 3)
51:(6 × 5) - (2 × 3)
52:(6 × (5 + 3)) ÷ 2
53:6 × (5 + 3) ÷ 2
54:6 × ((5 + 3) ÷ 2)
55:6 × (5 - 3 + 2)
56:6 × ((5 - 3) + 2)
57:6 × (5 - (3 - 2))
58:6 × 5 - 3 × 2
59:(6 × 5) - 3 × 2
60:(6 × (5 - 3)) × 2
61:6 × (5 - 3) × 2
62:6 × ((5 - 3) × 2)
63:6 × 5 -(3 × 2)
64:(6 × 5) - (3 × 2)
65:3 × 2 × 5 - 6
66:(3 × 2) × 5 - 6
67:(3 × 2 × 5) - 6
68:((3 × 2) × 5) - 6
69:(3 × (2 × 5)) - 6
70:3 × (2 × 5) - 6
71:3 × (6 ÷ 2 + 5)
72:3 × ((6 ÷ 2) + 5)
73:(3 + 5) ÷ 2 × 6
74:((3 + 5) ÷ 2) × 6
75:(3 + 5) ÷ (2 ÷ 6)
76:3 × 5 × 2 - 6
77:(3 × 5) × 2 - 6
78:(3 × 5 × 2) - 6
79:((3 × 5) × 2) - 6
80:(3 × (5 × 2)) - 6
81:3 × (5 × 2) - 6
82:(3 + 5) × 6 ÷ 2
83:((3 + 5) × 6) ÷ 2
84:(3 + 5) × (6 ÷ 2)
85:3 × (5 + 6 ÷ 2)
86:3 × (5 + (6 ÷ 2))
87:(5 + 2 - 3) × 6
88:((5 + 2) - 3) × 6
89:(5 + (2 - 3)) × 6
90:5 × 2 × 3 - 6
91:(5 × 2) × 3 - 6
92:(5 × 2 × 3) - 6
93:((5 × 2) × 3) - 6
94:(5 × (2 × 3)) - 6
95:5 × (2 × 3) - 6
96:(5 + 6 ÷ 2) × 3
97:(5 + (6 ÷ 2)) × 3
98:5 × 6 - 2 × 3
99:(5 × 6) - 2 × 3
100:5 × 6 -(2 × 3)
101:(5 × 6) - (2 × 3)
102:5 × 6 - 3 × 2
103:(5 × 6) - 3 × 2
104:5 × 6 -(3 × 2)
105:(5 × 6) - (3 × 2)
106:(5 + 3) ÷ 2 × 6
107:((5 + 3) ÷ 2) × 6
108:(5 + 3) ÷ (2 ÷ 6)
109:(5 - 3 + 2) × 6
110:((5 - 3) + 2) × 6
111:(5 - (3 - 2)) × 6
112:(5 - 3) × 2 × 6
113:((5 - 3) × 2) × 6
114:(5 - 3) × (2 × 6)
115:5 × 3 × 2 - 6
116:(5 × 3) × 2 - 6
117:(5 × 3 × 2) - 6
118:((5 × 3) × 2) - 6
119:(5 × (3 × 2)) - 6
120:5 × (3 × 2) - 6
121:(5 + 3) × 6 ÷ 2
122:((5 + 3) × 6) ÷ 2
123:(5 + 3) × (6 ÷ 2)
124:(5 - 3) × 6 × 2
125:((5 - 3) × 6) × 2
126:(5 - 3) × (6 × 2)