一、根据$2516÷68= 37$,写出下面各题的商。
$251.6÷6.8= $
$25.16÷0.37= $
$2.516÷0.37= $
$2.516÷0.68= $
$2.516÷3.7= $
$25.16÷0.68= $
$251.6÷6.8= $
$25.16÷0.37= $
$2.516÷0.37= $
$2.516÷0.68= $
$2.516÷3.7= $
$25.16÷0.68= $
答案
37 68 6.8 3.7 0.68 37
二、列竖式计算。
$2.5÷0.4= $
$25.3÷0.88= $
$8.84÷1.7= $
$58.5÷4.5= $
$0.14÷0.5= $
$47.04÷5.6= $
$2.5÷0.4= $
$25.3÷0.88= $
$8.84÷1.7= $
$58.5÷4.5= $
$0.14÷0.5= $
$47.04÷5.6= $
答案
6.25 28.75 5.2 13 0.28 8.4
解析
```
6.25
0.4)2.500
24
---
10
8
---
20
20
---
0
28.75
0.88)25.3000
23 76
------
1 540
1 320
------
2200
2200
------
0
5.2
1.7)8.8.4
8 5
---
34
34
---
0
13
4.5)58.5
45
---
135
135
---
0
0.28
0.5)0.140
0 10
-----
40
40
---
0
8.4
5.6)47.0.4
44 8
-----
2 24
2 24
-----
0
```
6.25
0.4)2.500
24
---
10
8
---
20
20
---
0
28.75
0.88)25.3000
23 76
------
1 540
1 320
------
2200
2200
------
0
5.2
1.7)8.8.4
8 5
---
34
34
---
0
13
4.5)58.5
45
---
135
135
---
0
0.28
0.5)0.140
0 10
-----
40
40
---
0
8.4
5.6)47.0.4
44 8
-----
2 24
2 24
-----
0
```
1. 甲、乙两队合铺一段$0.92\mathrm{km}$长的路。甲队每天铺$0.052\mathrm{km}$,乙队每天铺$0.063\mathrm{km}$。几天可以铺完这段路?
答案
0.92÷(0.052+0.063)=8(天)
2. 一块长方形的菜地,面积是$54.72\mathrm{m}^2$,宽是$3.6\mathrm{m}$。菜地的长是多少米?
答案
54.72÷3.6=15.2(m)
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