题目内容
用竖式计算.(最后一题要写出验算过程)
(1)354×3=
(2)306÷6=
(3)817÷5=验算.
(1)354×3=
(2)306÷6=
(3)817÷5=验算.
分析:根据整数的乘除法的竖式计算的方法进行计算即可.
解答:解:(1)354×3=1062;
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/c3081d5e.png)
(2)306÷6=51;
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/6853969c.png)
(3)817÷5=163…2;
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/8797c1f3.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/908fbc09.png)
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/c3081d5e.png)
(2)306÷6=51;
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/6853969c.png)
(3)817÷5=163…2;
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/8797c1f3.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201204/36/908fbc09.png)
点评:列竖式进行计算时,严格按照它们计算的法则进行计算,有余数的除法的验算,用商×除数+余数是否等于被除数.
![](http://thumb2018.1010pic.com/images/loading.gif)
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