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计算.3.25×839÷255.2÷315-123×0.7(53.7+1.2÷14)÷125(保留两位小数)(71112-534)÷(22-2.5)〔15+(2-0.47)÷320〕÷10.4〔2-(11.9-8.4×113)〕÷1.3.

题目详情

8
39
÷
2
5
                              
5.2÷3
1
5
-1
2
3
×0.7
(53.7+1.2÷
1
4
)÷1
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
8
39
883939
2
5
                              
5.2÷3
1
5
-1
2
3
×0.7
(53.7+1.2÷
1
4
)÷1
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
2
5
2255
1
5
-1
2
3
×0.7
(53.7+1.2÷
1
4
)÷1
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
1
5
1155
2
3
×0.7
(53.7+1.2÷
1
4
)÷1
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
2
3
2233
1
4
)÷1
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
1
4
1144
2
5
(保留两位小数)        
(7
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
2
5
2255
11
12
-5
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
11
12
11111212
3
4
)÷(22-2.5)
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
3
4
3344
1
5
+(2-0.47)÷
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
1
5
1155
3
20
〕÷10.4
〔2-(11.9-8.4×1
1
3
 )〕÷1.3.
3
20
332020
1
3
 )〕÷1.3.
1
3
1133
▼优质解答
答案和解析
(1)3.25×
8
39
÷
2
5
    
=
13
4
×
8
39
×
5
2

=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
8
39
888393939÷
2
5
    
=
13
4
×
8
39
×
5
2

=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
2
5
222555    
=
13
4
×
8
39
×
5
2

=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
13
4
131313444×
8
39
×
5
2

=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
8
39
888393939×
5
2

=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
5
2
555222
=
5
3

                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
5
3
555333;
                             
(2)5.2÷3
1
5
-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
5
111555-1
2
3
×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
2
3
222333×0.7
=
26
5
×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
26
5
262626555×
5
16
-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
5
16
555161616-
5
3
×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
5
3
555333×
7
10

=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
7
10
777101010
=
13
8
-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
13
8
131313888-
7
6

=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
7
6
777666
=
11
24


(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
11
24
111111242424;

(3)(53.7+1.2÷
1
4
)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
4
111444)÷1
2
5

=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
2
5
222555
=(53.7+1.2×4)÷1.4
=(53.7+4.8)÷1.4
=58.5÷1.4
≈41.79;
 
(4)(7
11
12
-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
11
12
111111121212-5
3
4
)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
3
4
333444)÷(22-2.5)
=2
1
6
÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
6
111666÷19.5
=
13
6
÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
13
6
131313666÷19
1
2

=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
2
111222
=
13
6
×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
13
6
131313666×
2
39

=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
2
39
222393939
=
1
9


(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
9
111999;

(5)[
1
5
+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
1
5
111555+(2-0.47)÷
3
20
]÷10.4
=[
1
5
+1.53×
20
3
3
20
333202020]÷10.4
=[
1
5
+1.53×
20
3
1
5
111555+1.53×
20
3
20
3
202020333]÷