20
80
1
4
2
小明
小红
小刚
小丽
小强
小华
15
18
20
16
14
19
12
16
14
13
17
11
### 1. $68\div4=17$
竖式计算:
```
1 7
______
4 ) 6 8
4
______
2 8
2 8
______
0
```
验算:
```
1 7
× 4
_____
6 8
```
---
### 2. $38\div3=12\cdots\cdots2$
竖式计算:
```
1 2
______
3 ) 3 8
3
______
8
6
______
2
```
验算:
```
1 2
× 3
_____
3 6
+ 2
_____
3 8
```
---
### 3. $97\div2=48\cdots\cdots1$
竖式计算:
```
4 8
______
2 ) 9 7
8
______
1 7
1 6
______
1
```
验算:
```
4 8
× 2
_____
9 6
+ 1
_____
9 7
```
---
### 4. $79\div5=15\cdots\cdots4$
竖式计算:
```
1 5
______
5 ) 7 9
5
______
2 9
2 5
______
4
```
验算:
```
1 5
× 5
_____
7 5
+ 4
_____
7 9
```