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201120112012÷20114.8×37+4.8×÷741317×519+1417×13192.28×17%+2.28×12+0.228×3.3.

题目详情
2011
2011
2012
÷2011
4.8×
3
7
+4.8×÷
7
4
13
17
×
5
19
+
14
17
×
13
19
2.28×17%+2.28×
1
2
+0.228×3.3.
2011
2011
2012
÷2011
4.8×
3
7
+4.8×÷
7
4
13
17
×
5
19
+
14
17
×
13
19
2.28×17%+2.28×
1
2
+0.228×3.3.
2011
2011
2012
÷2011
4.8×
3
7
+4.8×÷
7
4
2011
2011
2012
÷2011
2011
2012
÷2011
2011
2012
20112011201220124.8×
3
7
+4.8×÷
7
4
3
7
+4.8×÷
7
4
3
7
3377
7
4
7
4
7744
13
17
×
5
19
+
14
17
×
13
19
2.28×17%+2.28×
1
2
+0.228×3.3.
13
17
×
5
19
+
14
17
×
13
19
13
17
×
5
19
+
14
17
×
13
19
13
17
13131717
5
19
+
14
17
×
13
19
5
19
551919
14
17
×
13
19
14
17
14141717
13
19
13
19
131319192.28×17%+2.28×
1
2
+0.228×3.3.
1
2
+0.228×3.3.
1
2
1122
▼优质解答
答案和解析
(1)2011
2011
2012
÷2011,
=
2011×2012+2011
2012
×
1
2011

=
2011×(2012+1)
2012
×
1
2011

=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
2011
2012
201120112011201220122012÷2011,
=
2011×2012+2011
2012
×
1
2011

=
2011×(2012+1)
2012
×
1
2011

=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
2011×2012+2011
2012
2011×2012+20112011×2012+20112011×2012+2011201220122012×
1
2011

=
2011×(2012+1)
2012
×
1
2011

=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
1
2011
111201120112011,
=
2011×(2012+1)
2012
×
1
2011

=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
2011×(2012+1)
2012
2011×(2012+1)2011×(2012+1)2011×(2012+1)201220122012×
1
2011

=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
1
2011
111201120112011,
=
2013
2012


(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
2013
2012
201320132013201220122012;

(2)4.8×
3
7
+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
3
7
333777+4.8÷
7
4

=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
7
4
777444,
=4.8×
3
7
+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
3
7
333777+4.8×
4
7

=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
4
7
444777,
=4.8×(
3
7
+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
3
7
333777+
4
7
),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
4
7
444777),
=4.8×1,
=4.8;

(3)
13
17
×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717×
5
19
+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
5
19
555191919+
14
17
×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
14
17
141414171717×
13
19

=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
19
131313191919,
=
13
17
×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717×
5
19
+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
5
19
555191919+
13
17
×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717×
14
19

=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
14
19
141414191919,
=
13
17
×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717×(
5
19
+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
5
19
555191919+
14
19
),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
14
19
141414191919),
=
13
17
×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717×1,
=
13
17


(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
13
17
131313171717;

(4)2.28×17%+2.28×
1
2
+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.
1
2
111222+0.228×3.3,
=2.28×0.17+2.28×0.5+2.28×0.33,
=2.28×(0.17+0.5+0.33),
=2.28×1,
=2.28.