题目内容
用竖式计算
0.16×28
0.306×3.5
12.7×0.96
0.75×9.08(得数保留一位小数)
0.96×3.8(得数保留两位小数)
0.16×28
0.306×3.5
12.7×0.96
0.75×9.08(得数保留一位小数)
0.96×3.8(得数保留两位小数)
分析:根据小数乘法竖式计算的方法进行计算,再根据求小数的近似数的方法进行保留小数位数即可.
解答:解:(1)0.16×28=4.48;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/ef4e536b.png)
(2)0.306×3.5=1.071;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/a8cf9ab6.png)
(3)12.7×0.96=12.192;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/e7df08ae.png)
(4)0.75×9.08≈6.8;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/5f647ac7.png)
(5)0.96×3.8≈3.65.
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/4291160e.png)
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/ef4e536b.png)
(2)0.306×3.5=1.071;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/a8cf9ab6.png)
(3)12.7×0.96=12.192;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/e7df08ae.png)
(4)0.75×9.08≈6.8;
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/5f647ac7.png)
(5)0.96×3.8≈3.65.
![](http://thumb.1010pic.com/pic3/upload/images/201307/121/4291160e.png)
点评:列竖式计算时,注意小数点的位置,求小数的近似数,要根据四舍五入法进行求解.
![](http://thumb2018.1010pic.com/images/loading.gif)
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