题目内容
用竖式计算.(加减法要验算) (1)165+238= |
(2)420-126= | (3)125×4= |
(4)109×8= | (5)51÷7= | (6)48÷9= |
分析:根据整数加减法和整数乘除法的计算方法进行计算即可得到答案.
解答:解:(1)165+238=403;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/e1617353.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/0283aa2e.png)
(2)420-126=294;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/c3786677.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/4e94f67f.png)
(3)125×4=500;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/161ba2b9.png)
(4)109×8=872;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/7fa0b3f3.png)
(5)51÷7=7…2;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/f0cfe626.png)
(6)48÷9=5…3.
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/83b3c9f3.png)
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/e1617353.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/0283aa2e.png)
(2)420-126=294;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/c3786677.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/4e94f67f.png)
(3)125×4=500;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/161ba2b9.png)
(4)109×8=872;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/7fa0b3f3.png)
(5)51÷7=7…2;
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/f0cfe626.png)
(6)48÷9=5…3.
![](http://thumb.1010pic.com/pic3/upload/images/201401/4/83b3c9f3.png)
点评:此题主要考查的是整数加减法和整数乘除法的计算方法的灵活应用.
![](http://thumb2018.1010pic.com/images/loading.gif)
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