一、用竖式计算,带 * 的要验算。
$946÷42$ $303÷28$ * $156÷28$
$825÷25$ $107÷39$ * $321÷19$
$265÷18$ $309÷72$ * $408÷30$
$632÷43$ $207÷63$ * $683÷13$
$325÷15$ $674÷52$ * $517÷36$

22……22 10……23 5……16 33 2……29 16……17 14……13 4……21 13……18 14……30 3……18 52……7 21……10 12……50 14……13

$946÷42=22\cdots\cdots22$
```
22
42)946
84
---
106
84
---
22
```
$303÷28=10\cdots\cdots23$
```
10
28)303
28
---
23
```
$156÷28=5\cdots\cdots16$
```
5
28)156
140
---
16
```
验算：
```
28
× 5
---
140
+ 16
---
156
```
$825÷25=33$
```
33
25)825
75
---
75
75
---
0
```
$107÷39=2\cdots\cdots29$
```
2
39)107
78
---
29
```
$321÷19=16\cdots\cdots17$
```
16
19)321
19
---
131
114
---
17
```
验算：
```
19
× 16
---
114
19
---
304
+ 17
---
321
```
$265÷18=14\cdots\cdots13$
```
14
18)265
18
---
85
72
---
13
```
$309÷72=4\cdots\cdots21$
```
4
72)309
288
---
21
```
$408÷30=13\cdots\cdots18$
```
13
30)408
30
---
108
90
---
18
```
验算：
```
30
× 13
---
90
30
---
390
+ 18
---
408
```
$632÷43=14\cdots\cdots30$
```
14
43)632
43
---
202
172
---
30
```
$207÷63=3\cdots\cdots18$
```
3
63)207
189
---
18
```
$683÷13=52\cdots\cdots7$
```
52
13)683
65
---
33
26
---
7
```
验算：
```
13
× 52
---
26
65
---
676
+ 7
---
683
```
$325÷15=21\cdots\cdots10$
```
21
15)325
30
---
25
15
---
10
```
$674÷52=12\cdots\cdots50$
```
12
52)674
52
---
154
104
---
50
```
$517÷36=14\cdots\cdots13$
```
14
36)517
36
---
157
144
---
13
```
验算：
```
36
× 14
---
144
36
---
504
+ 13
---
517
```