题目内容
列竖式计算,并用乘法验算. 25.5÷0.75= |
100.8÷2.8= |
107.3÷0.037= | 45÷12.5= |
分析:根据小数除法竖式计算方法进行求解,再根据乘法验证除法的方法验算.
解答:解:25.5÷0.75=34
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/97c0e214.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/463c6edd.png)
100.8÷2.8=36
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/e2d497ae.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/76f7addc.png)
107.3÷0.037=2900
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/50c9e024.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/7df9bfbc.png)
45÷12.5=3.6
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/c31ef90e.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/c45d116d.png)
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/97c0e214.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/463c6edd.png)
100.8÷2.8=36
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/e2d497ae.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/76f7addc.png)
107.3÷0.037=2900
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/50c9e024.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/7df9bfbc.png)
45÷12.5=3.6
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/c31ef90e.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201402/8/c45d116d.png)
点评:本题考查了小数除法笔算的方法,以及根据被除数=除数×商验算除法的方法.
![](http://thumb2018.1010pic.com/images/loading.gif)
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