小学数学四年级下册小数乘除法计算练习题

用竖式计算下列各题 

31.5×24.5         0.8×0.56             0.63×1.05        0.86×1.2

84×3.05         0.41×56           1.05×305           1.06×30

0.39÷0.26        32÷0.2           6.496÷3.2          12.65÷5.5

8.61÷0.42      2.7÷7.5               25.6÷0.032                15÷0.06

3.6÷2 5        0.156÷15      　     85.44÷16           0.138÷15   

16.8÷28 　      1.35÷27           0.756÷0.18        2.688÷0.56

0.416÷32             3.÷52                91.2÷3.8        

51.3÷0.27            26÷0.13              210÷1.4        

下面各题，商保留一位小数。

14.36÷2.7≈　　　 8.33÷6.2≈　 1.7÷0.03≈