题目内容
列竖式计算.
10.47+8.95=
21.08-4.695=验算
15-5.05=
10.47+8.95=
21.08-4.695=验算
15-5.05=
分析:根据小数加减法的计算方法进行计算;注意验算方法的选择.
解答:解:10.47+8.95=19.42
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/cd69ca1a.png)
21.08-4.695=16.385
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/a1e876fe.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/f2c1b2e3.png)
15-5.05=9.95
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/235494db.png)
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/cd69ca1a.png)
21.08-4.695=16.385
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/a1e876fe.png)
验算:
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/f2c1b2e3.png)
15-5.05=9.95
![](http://thumb.1010pic.com/pic3/upload/images/201401/86/235494db.png)
点评:考查了小数加减法的笔算,根据各自的计算方法进行计算;注意把小数点对齐.
![](http://thumb2018.1010pic.com/images/loading.gif)
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