题目内容
用竖式计算,第①②题验算. ①549+867= |
②517-348= | ③52÷6= | ④356×6= |
分析:根据整数加减乘除竖式计算的方法进行计算即可.
解答:解:①549+867=1416,
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/6519e1e7.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/ff3d6e83.png)
②517-348=169,
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/d4fd067b.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/c7eac9fd.png)
③52÷6=8…4,
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/c9b4c76d.png)
④356×6=2136.
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/ab1ab883.png)
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/6519e1e7.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/ff3d6e83.png)
②517-348=169,
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/d4fd067b.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/c7eac9fd.png)
③52÷6=8…4,
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/c9b4c76d.png)
④356×6=2136.
![](http://thumb.1010pic.com/pic3/upload/images/201207/23/ab1ab883.png)
点评:列竖式计算,要按照它们各自的计算法则进行计算,验算时,一般加法的验算用减法,而减法的验算用加法.
![](http://thumb2018.1010pic.com/images/loading.gif)
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