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1. 直接写出得数。
4.7+3.5=
0.8×100=
0.72÷0.8=
8-0.8+1.2=
10-0.9=
5.67÷10=
0.48×50=
7.3×0.1÷0.1=
0.16÷8=
3.2÷0.4=
9÷0.45=
2.25×2×3=
9.6÷0.3=
0.98÷4=
24÷0.06=
15÷1.5×0.1=
2.6÷0.2=
6.5÷0.5=
1.125×8=
14.8÷0.1×100=
0.3×0.4=
0.21×2=
0.2÷0.02=
1.25×20×0.01=
60.1+0.02=
16÷0.25=
4.16÷0.2=
0.7+0.7÷0.7=
4.7+3.5=
8.2
0.8×100=
80
0.72÷0.8=
0.9
8-0.8+1.2=
8.4
10-0.9=
9.1
5.67÷10=
0.567
0.48×50=
24
7.3×0.1÷0.1=
7.3
0.16÷8=
0.02
3.2÷0.4=
8
9÷0.45=
20
2.25×2×3=
13.5
9.6÷0.3=
32
0.98÷4=
0.245
24÷0.06=
400
15÷1.5×0.1=
1
2.6÷0.2=
13
6.5÷0.5=
13
1.125×8=
9
14.8÷0.1×100=
14800
0.3×0.4=
0.12
0.21×2=
0.42
0.2÷0.02=
10
1.25×20×0.01=
0.25
60.1+0.02=
60.12
16÷0.25=
64
4.16÷0.2=
20.8
0.7+0.7÷0.7=
1.7
答案
8.2 80 0.9 8.4 9.1 0.567 24 7.3 0.02 8 20 13.5 32 0.245 400 1 13 13 9 14800 0.12 0.42 10 0.25 60.12 64 20.8 1.7
2. 用竖式计算。
0.34×0.21=
20.5×18=
28.08÷6.5=
7.5×2.3=
8÷0.32=
3.36÷1.5=
竖式略
0.34×0.21=
0.0714
20.5×18=
369
28.08÷6.5=
4.32
7.5×2.3=
17.25
8÷0.32=
25
3.36÷1.5=
2.24
竖式略
答案
0.0714 369 4.32 17.25 25 2.24 竖式略
解析
0.34×0.21=0.0714
```
0.34
×0.21
------
34
68
------
0.0714
```
20.5×18=369
```
20.5
× 18
------
1640
205
------
369.0
```
28.08÷6.5=4.32
```
4.32
65)280.8
260
---
208
195
---
130
130
---
0
```
7.5×2.3=17.25
```
7.5
×2.3
-----
225
150
-----
17.25
```
8÷0.32=25
```
25
32)800
64
---
160
160
---
0
```
3.36÷1.5=2.24
```
2.24
15)33.6
30
---
36
30
---
60
60
---
0
```
```
0.34
×0.21
------
34
68
------
0.0714
```
20.5×18=369
```
20.5
× 18
------
1640
205
------
369.0
```
28.08÷6.5=4.32
```
4.32
65)280.8
260
---
208
195
---
130
130
---
0
```
7.5×2.3=17.25
```
7.5
×2.3
-----
225
150
-----
17.25
```
8÷0.32=25
```
25
32)800
64
---
160
160
---
0
```
3.36÷1.5=2.24
```
2.24
15)33.6
30
---
36
30
---
60
60
---
0
```
张叔叔每隔4天去图书馆借一次书,李叔叔每隔5天借一次书。2025年6月1日他们同时去了图书馆,他们下次同时去图书馆借书是( )月( )日。(先填表,再回答问题)
答案
7 1
