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(2012•勐海县)脱式计算,注意能简算的要简算.4.8×2.35+2.35×5.26÷[(1112-23)÷34]35×12+3÷530.5÷[(12+34)×0.2](0.8-12)÷(1-47)2012×20102011

题目详情
(2012•勐海县)
脱式计算,注意能简算的要简算.
4.8×2.35+2.35×5.2             

6÷[(
11
12
-
2
3
)÷
3
4
]
3
5
×12+3÷
5
3
                      
0.5÷[(  
1
2
+
3
4
 )×0.2]
(0.8-
1
2
)÷(1-
4
7
)               
2012×
2010
2011
脱式计算,注意能简算的要简算.
4.8×2.35+2.35×5.2             

6÷[(
11
12
-
2
3
)÷
3
4
]
3
5
×12+3÷
5
3
                      
0.5÷[(  
1
2
+
3
4
 )×0.2]
(0.8-
1
2
)÷(1-
4
7
)               
2012×
2010
2011
脱式计算,注意能简算的要简算.
4.8×2.35+2.35×5.2             
6÷[(
11
12
-
2
3
)÷
3
4
]
脱式计算,注意能简算的要简算.
4.8×2.35+2.35×5.2             

6÷[(
11
12
-
2
3
)÷
3
4
]

11
12
-
2
3
)÷
3
4
]
11
12
11111212
2
3
)÷
3
4
]
2
3
2233
3
4
]
3
4
3344
3
5
×12+3÷
5
3
                      
0.5÷[(  
1
2
+
3
4
 )×0.2]
3
5
×12+3÷
5
3
                      
3
5
×12+3÷
5
3
                      
3
5
3355
5
3
                      
5
3
55330.5÷[(  
1
2
+
3
4
 )×0.2]
1
2
+
3
4
 )×0.2]
1
2
1122
3
4
 )×0.2]
3
4
3344(0.8-
1
2
)÷(1-
4
7
)               
2012×
2010
2011
(0.8-
1
2
)÷(1-
4
7
)               
1
2
)÷(1-
4
7
)               
1
2
1122
4
7
)               
4
7
44772012×
2010
2011
2010
2011
2010
2011
2010201020112011
▼优质解答
答案和解析
(1)4.8×2.35+2.35×5.2
=(4.8+5.2)×2.35
=10×2.35
=23.5;

(2)6÷[(
11
12
-
2
3
)÷
3
4
]
=6÷[
1
4
÷
3
4
]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
11
12
111111121212-
2
3
)÷
3
4
]
=6÷[
1
4
÷
3
4
]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
2
3
222333)÷
3
4
]
=6÷[
1
4
÷
3
4
]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
4
333444]
=6÷[
1
4
÷
3
4
]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
1
4
111444÷
3
4
]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
4
333444]
=6÷
1
3

=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
1
3
111333
=18;

(3)
3
5
×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
5
333555×12+3÷
5
3

=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
5
3
555333
=
3
5
×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
5
333555×12+3×
3
5

=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
5
333555
=
3
5
×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
5
333555×(12+3)
=
3
5
×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
5
333555×15
=9;

(4)0.5÷[(
1
2
+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
1
2
111222+
3
4
)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
4
333444)×0.2]
=0.5÷[
5
4
×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
5
4
555444×0.2]
=0.5÷
1
4

=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
1
4
111444
=2;

(5)(0.8-
1
2
)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
1
2
111222)÷(1-
4
7

=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
4
7
444777)
=
3
10
÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
10
333101010÷
3
7

=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
3
7
333777
=
7
10


(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
7
10
777101010;

(6)2012×
2010
2011

=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
2010
2011
201020102010201120112011
=(2011+1)×
2010
2011

=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
2010
2011
201020102010201120112011
=2011×
2010
2011
+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
2010
2011
201020102010201120112011+1×
2010
2011

=2010+
2010
2011

=2010
2010
2011
2010
2011
201020102010201120112011
=2010+
2010
2011

=2010
2010
2011
2010
2011
201020102010201120112011
=2010
2010
2011
2010
2011
201020102010201120112011.