题目内容
我能列竖式计算.我还能给带★的算式验算呢!
★812÷2= | 603×4= | 439×7= | 602÷2= |
解:812÷2=406,
40 6
![](http://thumb.1010pic.com/pic5/latex/517045.png)
![](http://thumb.1010pic.com/pic5/latex/517046.png)
![](http://thumb.1010pic.com/pic5/latex/402400.png)
验算:406
![](http://thumb.1010pic.com/pic5/latex/517047.png)
603×4=2412,
60 3
![](http://thumb.1010pic.com/pic5/latex/517048.png)
439×7=3073,
43 9
![](http://thumb.1010pic.com/pic5/latex/517049.png)
602÷2=301.
30 1
![](http://thumb.1010pic.com/pic5/latex/517050.png)
![](http://thumb.1010pic.com/pic5/latex/517051.png)
![](http://thumb.1010pic.com/pic5/latex/217436.png)
分析:根据整数乘除法的笔算法则,列竖式计算即可解答,除法可利用它的逆运算乘法进行验算的.
点评:此题考查学生的计算能力,属于基础题,细心计算即可解答.
40 6
![](http://thumb.1010pic.com/pic5/latex/517045.png)
![](http://thumb.1010pic.com/pic5/latex/517046.png)
![](http://thumb.1010pic.com/pic5/latex/402400.png)
验算:406
![](http://thumb.1010pic.com/pic5/latex/517047.png)
603×4=2412,
60 3
![](http://thumb.1010pic.com/pic5/latex/517048.png)
439×7=3073,
43 9
![](http://thumb.1010pic.com/pic5/latex/517049.png)
602÷2=301.
30 1
![](http://thumb.1010pic.com/pic5/latex/517050.png)
![](http://thumb.1010pic.com/pic5/latex/517051.png)
![](http://thumb.1010pic.com/pic5/latex/217436.png)
分析:根据整数乘除法的笔算法则,列竖式计算即可解答,除法可利用它的逆运算乘法进行验算的.
点评:此题考查学生的计算能力,属于基础题,细心计算即可解答.
![](http://thumb2018.1010pic.com/images/loading.gif)
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