题目内容
笔算下面各题,要求验算的要验算.
404-186=________验算: | 755+165=________ | 483+576=________ |
58÷7=________ | 35÷5=________ | 73÷9=________. |
218 920 1059 8…2 7 8…1
分析:根据整数加减法和除法竖式计算的方法进行计算即可;减法的验算一般用加法.
解答:
404-186=218
![](http://thumb.1010pic.com/pic5/upload/201305/51d638385d749.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d638387d8ba.png)
755+165=920
![](http://thumb.1010pic.com/pic5/upload/201305/51d638389f03d.png)
483+576=1059
![](http://thumb.1010pic.com/pic5/upload/201305/51d63838bf727.png)
58÷7=8…2
![](http://thumb.1010pic.com/pic5/upload/201305/51d63838dfba6.png)
35÷5=7
![](http://thumb.1010pic.com/pic5/upload/201305/51d638390dd79.png)
73÷9=8…1
![](http://thumb.1010pic.com/pic5/upload/201305/51d638392ebbb.png)
点评:本题主要考查整数加减法和除法的笔算,根据各自的计算方法进行计算即可;注意验算方法的选择.
分析:根据整数加减法和除法竖式计算的方法进行计算即可;减法的验算一般用加法.
解答:
404-186=218
![](http://thumb.1010pic.com/pic5/upload/201305/51d638385d749.png)
验算:
![](http://thumb.1010pic.com/pic5/upload/201305/51d638387d8ba.png)
755+165=920
![](http://thumb.1010pic.com/pic5/upload/201305/51d638389f03d.png)
483+576=1059
![](http://thumb.1010pic.com/pic5/upload/201305/51d63838bf727.png)
58÷7=8…2
![](http://thumb.1010pic.com/pic5/upload/201305/51d63838dfba6.png)
35÷5=7
![](http://thumb.1010pic.com/pic5/upload/201305/51d638390dd79.png)
73÷9=8…1
![](http://thumb.1010pic.com/pic5/upload/201305/51d638392ebbb.png)
点评:本题主要考查整数加减法和除法的笔算,根据各自的计算方法进行计算即可;注意验算方法的选择.
![](http://thumb2018.1010pic.com/images/loading.gif)
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