一、在下面的( )里填上合适的数。
$12÷0.4= $( )$÷4$
$8÷0.16= $( )$÷16$
$12÷0.04= $( )$÷4$
$8÷1.6= $( )$÷16$

120 800 1200 80

二、算一算,比一比。
$360÷\begin{array}{|c|c|c|} \hline 15 \\ \hline 1.5 \\ \hline 0.15 \\ \hline \end{array}\\ \hline = \begin{array}{|c|c|c|} \hline \\ \hline \\ \hline \\ \hline \end{array}\\ \hline = \begin{array}{|c|c|c|} \hline \\ \hline \\ \hline \\ \hline $


$\begin{array}{|c|c|c|} \hline 105 \\ \hline 10.5 \\ \hline 1.05 \\ \hline \end{array}\\ \hline ÷0.7= \begin{array}{|c|c|c|} \hline \\ \hline \\ \hline \\ \hline \end{array} \begin{array}{|c|c|c|} \hline \\ \hline \\ \hline \\ \hline $

24 240 2400 150 15 1.5

三、列竖式计算。
$91÷1.3= $
$10.8÷2.7= $
$1.19÷0.85= $
$0.15÷0.6= $
$4.75÷0.38= $
$6.12÷1.7= $

70 4 1.4 0.25 12.5 3.6

```
70
1.3)910
91
---
0
4
2.7)10.8
10.8
---
0
1.4
0.85)1.190
85
---
340
340
---
0
0.25
0.6)0.150
120
---
300
300
---
0
12.5
0.38)4.750
38
---
95
76
---
190
190
---
0
3.6
1.7)6.12
51
---
102
102
---
0
```