题目内容
列竖式计算
0.8-0.27 | 5.89+24.7 | 3.24÷1.1(得数保留两位小数) | 6.9×4.52(得数精确到十分位) |
分析:根据小数加减乘除的竖式计算的方法进行计算即可;根据四舍五入法保留小数的位数.
解答:解:0.8-0.27=0.53;
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/cc65876a.png)
5.89+24.7=30.59;
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/e8d8b42f.png)
3.24÷1.1≈2.95;
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/b25ae1ce.png)
6.9×4.52≈31.2.
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/4e1f519f.png)
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/cc65876a.png)
5.89+24.7=30.59;
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/e8d8b42f.png)
3.24÷1.1≈2.95;
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/b25ae1ce.png)
6.9×4.52≈31.2.
![](http://thumb.1010pic.com/pic3/upload/images/201302/36/4e1f519f.png)
点评:本题主要考查小数加减乘除的笔算,根据各自的计算方法进行计算即可;根据四舍五入法保留小数的位数.
![](http://thumb2018.1010pic.com/images/loading.gif)
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