题目内容
用竖式计算,并验算:
(1)76×53
(2)828÷18
(3)2210÷23.
解:(1)76×53=4028,
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d39c5a.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d5ba63.png)
(2)828÷18=46,
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d7d553.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d9fec7.png)
(3)2210÷23=96…2,
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374dc22d4.png)
验算:
.
分析:根据整数乘除法竖式计算的方法进行计算即可.
点评:列竖式进行计算时,要按照计算法则进行计算,注意进位,有余数的除法进行验算时,根据商×除数+余数是否等于被除数进行验算.
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d39c5a.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d5ba63.png)
(2)828÷18=46,
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d7d553.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374d9fec7.png)
(3)2210÷23=96…2,
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374dc22d4.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d6374de3bc5.png)
分析:根据整数乘除法竖式计算的方法进行计算即可.
点评:列竖式进行计算时,要按照计算法则进行计算,注意进位,有余数的除法进行验算时,根据商×除数+余数是否等于被除数进行验算.
![](http://thumb2018.1010pic.com/images/loading.gif)
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