题目内容
列竖式计算
(1)1.29×0.52
(2)6.2×0.05
(3)6.12+1.7
(4)5.3÷0.8(商凑整到十分位)
(1)1.29×0.52
(2)6.2×0.05
(3)6.12+1.7
(4)5.3÷0.8(商凑整到十分位)
分析:根据小数加法和乘除法的计算方法进行计算.
解答:解:
(1)1.29×0.52=0.6708
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/60e3a482.png)
(2)6.2×0.05=0.31
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/d39096b6.png)
(3)6.12+1.7=7.82
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/f4834b76.png)
(4)5.3÷0.8≈6.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/f1e1a3b7.png)
(1)1.29×0.52=0.6708
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/60e3a482.png)
(2)6.2×0.05=0.31
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/d39096b6.png)
(3)6.12+1.7=7.82
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/f4834b76.png)
(4)5.3÷0.8≈6.6
![](http://thumb.1010pic.com/pic3/upload/images/201309/24/f1e1a3b7.png)
点评:考查了小数加法和乘除法的笔算,根据各自的计算方法进行计算.
![](http://thumb2018.1010pic.com/images/loading.gif)
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