题目内容
竖式计算 215×7= |
408×5= | 487+6= |
145×9= | 370-89= | 250×8= |
分析:根据三位数乘一位数的笔算法则和整数减法的法则,列竖式计算即可解答问题.
解答:解:215×7=1505;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/f11d69ca.png)
408×5=2040;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/6bef9334.png)
487+6=493;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/bc67037c.png)
145×9=1305;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/7ec46a57.png)
370-89=281;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/9c67c19b.png)
250×8=2000.
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/186e4e6a.png)
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/f11d69ca.png)
408×5=2040;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/6bef9334.png)
487+6=493;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/bc67037c.png)
145×9=1305;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/7ec46a57.png)
370-89=281;
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/9c67c19b.png)
250×8=2000.
![](http://thumb.1010pic.com/pic3/upload/images/201311/187/186e4e6a.png)
点评:此题考查了学生的笔算能力,属于基础题,细心计算即可解答.
![](http://thumb2018.1010pic.com/images/loading.gif)
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