题目内容
用竖式计算并验算 5.307+20.96 |
90.08-6.977 |
6.42+12.45 | 41.2-15.6 |
10-4.63 |
分析:根据小数加、减法的计算法则,直接列竖式计算并验算.
解答:解:5.307+20.96=26.267;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/267b4b98.png)
90.08-6.977=83.103;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/fe004075.png)
6.42+12.45=18.87;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/486d9a2a.png)
41.2-15.6=25.6;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/05dc41e5.png)
10-4.63=5.37;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/c4979d74.png)
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/267b4b98.png)
90.08-6.977=83.103;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/fe004075.png)
6.42+12.45=18.87;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/486d9a2a.png)
41.2-15.6=25.6;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/05dc41e5.png)
10-4.63=5.37;
![](http://thumb.1010pic.com/pic3/upload/images/201312/186/c4979d74.png)
点评:此题考查的目的是理解掌握小数四则运算的计算法则,并且能够正确熟练地用竖式计算.
![](http://thumb2018.1010pic.com/images/loading.gif)
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