题目内容
列竖式计算下面各题.
(1)73.1×2.5=
(2)0.7×50.6=
(3)12.6×2.65=
(4)5.16×3.5=
(5)0.26×0.45=
(6)2.01×3.8=
(7)10.2×0.25=
(8)5.06×6.5=
(9)0.38×7.09=
(1)73.1×2.5=
(2)0.7×50.6=
(3)12.6×2.65=
(4)5.16×3.5=
(5)0.26×0.45=
(6)2.01×3.8=
(7)10.2×0.25=
(8)5.06×6.5=
(9)0.38×7.09=
分析:根据小数的乘法法则计算即可求解.
解答:解:(1)73.1×2.5=182.75;
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/c23e735e.png)
146 2
(2)0.7×50.6=35.42;
5 0.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/1b254f62.png)
(3)12.6×2.65=33.39;
1 2.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/92dcd1eb.png)
7 5 6
25 2
(4)5.16×3.5=18.06;
5.1 6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/dbd75655.png)
15 4 8
(5)0.26×0.45=0.117;
0.26
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/23f674ad.png)
104
(6)2.01×3.8=7.638;
2.0 1
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/56bfa1d7.png)
6 0 3
(7)10.2×0.25=2.55;
1 0.2
×0.2 5
2 0 4
(8)5.06×6.5=32.89;
5.0 6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/83c68f92.png)
30 3 6
(9)0.38×7.09=2.6942.
7.09
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/5cf7b0c3.png)
2 1 27
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/c23e735e.png)
. |
36 5 5 |
146 2
. |
182.7 5 |
(2)0.7×50.6=35.42;
5 0.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/1b254f62.png)
. |
35.4 2 |
(3)12.6×2.65=33.39;
1 2.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/92dcd1eb.png)
. |
6 3 0 |
7 5 6
25 2
. |
33.3 9 0 |
(4)5.16×3.5=18.06;
5.1 6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/dbd75655.png)
. |
2 5 8 0 |
15 4 8
. |
18.0 6 0 |
(5)0.26×0.45=0.117;
0.26
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/23f674ad.png)
. |
1 30 |
104
. |
0.11 70 |
(6)2.01×3.8=7.638;
2.0 1
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/56bfa1d7.png)
. |
1 6 0 8 |
6 0 3
. |
7.6 3 8 |
(7)10.2×0.25=2.55;
1 0.2
×0.2 5
. |
5 1 0 |
2 0 4
. |
2.5 5 0 |
(8)5.06×6.5=32.89;
5.0 6
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/83c68f92.png)
. |
2 5 3 0 |
30 3 6
. |
32.8 9 0 |
(9)0.38×7.09=2.6942.
7.09
![](http://thumb.1010pic.com/pic3/upload/images/201309/38/5cf7b0c3.png)
. |
5 6 72 |
2 1 27
. |
2.6 9 42 |
点评:考查了小数乘法,解题的关键是熟练掌握计算法则,正确进行计算.
![](http://thumb2018.1010pic.com/images/loading.gif)
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