1 直接写出得数。
$8.8 ÷ 2 =$
$7.2 ÷ 3 =$
$9.2 ÷ 4 =$
$8.5 ÷ 5 =$
$4.8 ÷ 3 =$
$4.04 ÷ 4 =$
$5.1 ÷ 3 =$
$6.12 ÷ 3 =$

$8.8 ÷ 2 = 4.4$
$7.2 ÷ 3 = 2.4$
$9.2 ÷ 4 = 2.3$
$8.5 ÷ 5 = 1.7$
$4.8 ÷ 3 = 1.6$
$4.04 ÷ 4 = 1.01$
$5.1 ÷ 3 = 1.7$
$6.12 ÷ 3 = 2.04$

② 把下题的计算补充完整。

3 用竖式计算，带*的要验算。
147 ÷ 5 =
126 ÷ 45 =
84. ÷ 48 =

147 ÷ 5 = 29.4
```
29.4
_______
5 |147.0
10
_______
47
45
_______
20
20
_______
0
```
126 ÷ 45 = 2.8
```
2.8
_______
45|126.0
90
_______
360
360
_______
0
```
*84 ÷ 48 = 1.75
```
1.75
________
48|84.00
48
________
360
336
________
240
240
________
0
```
验算：
```
1.75
× 48
------
1400
700
------
84.00
```

4 乐乐的体重是35千克，乐乐爸爸的体重是77千克，乐乐爸爸的体重是乐乐的多少倍？

77÷35=2.2
答：乐乐爸爸的体重是乐乐的2.2倍。