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1. 直接写出得数。
0.8÷0.4=
1÷0.1=
8.2÷0.01=
7.8÷0.2÷0.1=
3.2÷0.8=
7.1÷0.5=
16.8÷0.3=
8÷0.08×30=
12.5÷50=
0.12÷0.03=
1÷0.25=
7.07÷0.7×2=
24÷0.6=
4.5÷0.09=
9.9÷0.33=
4.8÷0.2÷0.01=
8.4÷0.21=
51÷0.17=
3.5÷0.07=
96÷0.4×10=
28÷0.7=
4.8÷0.08=
1.89÷0.09=
8.4÷4.2÷0.5=
25÷0.5=
4.97÷0.07=
72.8÷0.07=
2÷0.4×20=
1.5÷0.75=
0.96÷0.032=
5.5÷0.11=
1.5÷0.03÷10=
0.8÷0.4=
2
1÷0.1=
10
8.2÷0.01=
820
7.8÷0.2÷0.1=
390
3.2÷0.8=
4
7.1÷0.5=
14.2
16.8÷0.3=
56
8÷0.08×30=
3000
12.5÷50=
0.25
0.12÷0.03=
4
1÷0.25=
4
7.07÷0.7×2=
20.2
24÷0.6=
40
4.5÷0.09=
50
9.9÷0.33=
30
4.8÷0.2÷0.01=
2400
8.4÷0.21=
40
51÷0.17=
300
3.5÷0.07=
50
96÷0.4×10=
2400
28÷0.7=
40
4.8÷0.08=
60
1.89÷0.09=
21
8.4÷4.2÷0.5=
4
25÷0.5=
50
4.97÷0.07=
71
72.8÷0.07=
1040
2÷0.4×20=
100
1.5÷0.75=
2
0.96÷0.032=
30
5.5÷0.11=
50
1.5÷0.03÷10=
5
答案
2 10 820 390 4 14.2 56 3000 0.25 4 4 20.2 40 50 30 2400 40 300 50 2400 40 60 21 4 50 71 1040 100 2 30 50 5
2. 用竖式计算,带☆的要验算。
57.6÷0.16=
12÷4.8=
☆0.84÷0.035=
2.6÷0.52=
☆19.2÷0.32=
9.6÷0.64=
竖式及验算略
57.6÷0.16=
360
12÷4.8=
2.5
☆0.84÷0.035=
24
2.6÷0.52=
5
☆19.2÷0.32=
60
9.6÷0.64=
15
竖式及验算略
答案
360 2.5 24 5 60 15 竖式及验算略
解析
```
360
0.16)57.60
48
---
96
96
---
0
2.5
4.8)12.0
96
---
240
240
---
0
24
0.035)0.840
70
---
140
140
---
0
验算：
0.035
× 24
------
140
70
------
0.840
5
0.52)2.60
260
---
0
60
0.32)19.20
192
---
0
验算：
0.32
× 60
------
19.20
15
0.64)9.60
64
---
320
320
---
0
```
360
0.16)57.60
48
---
96
96
---
0
2.5
4.8)12.0
96
---
240
240
---
0
24
0.035)0.840
70
---
140
140
---
0
验算：
0.035
× 24
------
140
70
------
0.840
5
0.52)2.60
260
---
0
60
0.32)19.20
192
---
0
验算：
0.32
× 60
------
19.20
15
0.64)9.60
64
---
320
320
---
0
```
(1)$0.\underbrace{00…0}_{2024个0}125÷0.\underbrace{00…0}_{2028个0}8= $
(2)$0.\underbrace{00…0}_{2025个0}576÷0.\underbrace{00…0}_{2025个0}24= $
1562.5
(2)$0.\underbrace{00…0}_{2025个0}576÷0.\underbrace{00…0}_{2025个0}24= $
2.4
答案
(1)1562.5
(2)2.4
