1.456÷8的商是(
两
)位数,最高位是(十
)位,商是(57
)。答案
1.两 十 57
2. 在算式○÷4=12……△中,△最大是(
在算式○÷△=15……8中,△最小是(
3
),此时○是(51
);在算式○÷△=15……8中,△最小是(
9
),此时○是(143
)。答案
2.3 51 9 143
3.把72个月饼平均分给3个敬老院,每个敬老院可以分到多少个?
列式如下:

虚线框内的计算表示:3个敬老院分(
列式如下:
虚线框内的计算表示:3个敬老院分(
70
)个,每个敬老院分(20
)个,分掉了(60
)个,余(10
)个。答案
3.70 20 60 10
4.动物园养了2头河马,一周(7天)要吃掉952千克水草,平均1头河马1天要吃掉(
68
)千克水草。答案
4.68
1. 直接写出得数。
50 ÷ 2 =
217 ÷ 7 =
400 ÷ 8 =
630 ÷ 9 =
45 ÷ 3 =
204 ÷ 4 =
390 ÷ 3 =
505 ÷ 5 =
50 ÷ 2 =
217 ÷ 7 =
400 ÷ 8 =
630 ÷ 9 =
45 ÷ 3 =
204 ÷ 4 =
390 ÷ 3 =
505 ÷ 5 =
答案
50 ÷ 2 = 25
217 ÷ 7 = 31
400 ÷ 8 = 50
630 ÷ 9 = 70
45 ÷ 3 = 15
204 ÷ 4 = 51
390 ÷ 3 = 130
505 ÷ 5 = 101
217 ÷ 7 = 31
400 ÷ 8 = 50
630 ÷ 9 = 70
45 ÷ 3 = 15
204 ÷ 4 = 51
390 ÷ 3 = 130
505 ÷ 5 = 101
2. 列竖式计算,带★的要验算。
79 ÷ 4 =
804 ÷ 6 =
★252 ÷ 7 =
980 ÷ 7 =
608 ÷ 3 =
★527 ÷ 5 =
79 ÷ 4 =
804 ÷ 6 =
★252 ÷ 7 =
980 ÷ 7 =
608 ÷ 3 =
★527 ÷ 5 =
答案
79 ÷ 4 = 19……3
```
19
______
4 | 79
4
______
39
36
______
3
```
804 ÷ 6 = 134
```
134
______
6 | 804
6
______
20
18
______
24
24
______
0
```
★252 ÷ 7 = 36
```
36
______
7 | 252
21
______
42
42
______
0
```
验算:
```
36
× 7
______
252
```
980 ÷ 7 = 140
```
140
______
7 | 980
7
______
28
28
______
0
```
608 ÷ 3 = 202……2
```
202
______
3 | 608
6
______
08
6
______
2
```
★527 ÷ 5 = 105……2
```
105
______
5 | 527
5
______
27
25
______
2
```
验算:
```
105
× 5
______
525
+ 2
______
527
```
```
19
______
4 | 79
4
______
39
36
______
3
```
804 ÷ 6 = 134
```
134
______
6 | 804
6
______
20
18
______
24
24
______
0
```
★252 ÷ 7 = 36
```
36
______
7 | 252
21
______
42
42
______
0
```
验算:
```
36
× 7
______
252
```
980 ÷ 7 = 140
```
140
______
7 | 980
7
______
28
28
______
0
```
608 ÷ 3 = 202……2
```
202
______
3 | 608
6
______
08
6
______
2
```
★527 ÷ 5 = 105……2
```
105
______
5 | 527
5
______
27
25
______
2
```
验算:
```
105
× 5
______
525
+ 2
______
527
```
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