题目内容

7.15×22=________;    90.75÷3.3=________; 3.68×0.25=________;   16.9÷0.1________;  
1.55÷3.9=________;   3.7×0.016=________;  13.76×0.8=________;   5.2×0.6=________;  
35.4×4.2=________;   10.75÷12.5=________;  0.042×0.54=________;  10.75÷12.5=________.

157.3    27.5    0.92    =130    0.40    0.0592    11.008    3.12    148.68    0.86    0.02268    0.86
分析:根据小数乘除法竖式计算的方法进行计算即可求出结果.
解答:7.15×22=157.3;

90.75÷3.3=27.5;

3.68×0.25=0.92;

16.9÷0.13=130;

1.55÷3.9≈0.40;

3.7×0.016=0.0592;

13.76×0.8=11.008;

5.2×0.6=3.12;

35.4×4.2=148.68;

10.75÷12.5=0.86;

0.042×0.54=0.02268;

10.75÷12.5=0.86;

点评:列竖式计算小数的乘除法,注意小数点的位置,对于除法,除不尽的要保留两位小数.
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