一、口算。
$0.72÷2=
$0.72÷0.2=
$2.07÷0.9=
$3.96÷0.04=
$4.8÷0.5=
$2.01÷0.3=
$8.8÷1.1=
$2.08÷0.4=
$0.72÷2=
0.36
$ $5.6÷28=0.2
$ $7.5÷5=1.5
$$0.72÷0.2=
3.6
$ $5.6÷2.8=2
$ $7.5÷0.5=15
$$2.07÷0.9=
2.3
$ $11.7÷0.3=39
$ $0.25÷0.05=5
$$3.96÷0.04=
99
$ $0.6÷0.5=1.2
$ $0.44÷0.1=4.4
$$4.8÷0.5=
9.6
$ $7.8÷3.9=2
$ $1.14÷0.2=5.7
$$2.01÷0.3=
6.7
$ $5.2÷2.6=2
$ $0.85÷0.5=1.7
$$8.8÷1.1=
8
$ $0.83÷0.2=4.15
$ $0.74÷0.2=3.7
$$2.08÷0.4=
5.2
$ $50.4÷0.8=63
$ $0.96÷0.48=2
$答案
一、0.36 0.2 1.5 3.6 2 15 2.3 39 5 99 1.2 4.4 9.6 2 5.7 6.7 2 1.7 8 4.15 3.7 5.2 63 2
二、用竖式计算。
$53.01÷3.1$ $1.288÷0.56$ $9.86÷0.34$
$1.85÷0.74$ $1.036÷0.28$ $4.176÷0.72$
$53.01÷3.1$ $1.288÷0.56$ $9.86÷0.34$
$1.85÷0.74$ $1.036÷0.28$ $4.176÷0.72$
答案
二、17.1 2.3 29 2.5 3.7 5.8
解析
二、
1. $53.01 ÷ 3.1 = 17.1$
竖式计算:
```
17.1
--------
3.1)53.01
-31
----
22 0
-21 7
----
31
-31
----
0
```
2. $1.288 ÷ 0.56 = 2.3$
竖式计算:
```
2.3
----------
0.56)1.288
-1.12
-----
0.168
-0.168
-----
0
```
3. $9.86 ÷ 0.34 = 29$
竖式计算:
```
29
----------
0.34)9.86
-6.8
-----
3.06
-2.72
-----
0.34
-0.34
-----
0
```
4. $1.85 ÷ 0.74 = 2.5$
竖式计算:
```
2.5
----------
0.74)1.85
-1.48
-----
0.37
-0.37
-----
0
```
5. $1.036 ÷ 0.28 = 3.7$
竖式计算:
```
3.7
----------
0.28)1.036
-0.84
-----
0.196
-0.196
-----
0
```
6. $4.176 ÷ 0.72 = 5.8$
竖式计算:
```
5.8
----------
0.72)4.176
-3.6
-----
0.576
-0.576
-----
0
```
1. $53.01 ÷ 3.1 = 17.1$
竖式计算:
```
17.1
--------
3.1)53.01
-31
----
22 0
-21 7
----
31
-31
----
0
```
2. $1.288 ÷ 0.56 = 2.3$
竖式计算:
```
2.3
----------
0.56)1.288
-1.12
-----
0.168
-0.168
-----
0
```
3. $9.86 ÷ 0.34 = 29$
竖式计算:
```
29
----------
0.34)9.86
-6.8
-----
3.06
-2.72
-----
0.34
-0.34
-----
0
```
4. $1.85 ÷ 0.74 = 2.5$
竖式计算:
```
2.5
----------
0.74)1.85
-1.48
-----
0.37
-0.37
-----
0
```
5. $1.036 ÷ 0.28 = 3.7$
竖式计算:
```
3.7
----------
0.28)1.036
-0.84
-----
0.196
-0.196
-----
0
```
6. $4.176 ÷ 0.72 = 5.8$
竖式计算:
```
5.8
----------
0.72)4.176
-3.6
-----
0.576
-0.576
-----
0
```
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