《2025年同步练习册青岛出版社四年级数学上册青岛版淄博专版五四制》

3. 用竖式计算。(带“☆”的要验算。)
☆$7.56 + 2.8 = $```
7.56
+ 2.80
------
10.36
```
验算：
```
10.36
- 2.80
------
7.56
```
☆$13.9 - 6.78 = $```
13.90
- 6.78
------
7.12
```
验算：
```
7.12
+ 6.78
------
13.90
```
$54.9 + 2.57 = $```
54.90
+ 2.57
------
57.47
```
$64.52 - 43.8 = $```
64.52
- 43.80
------
20.72
```
$4.22 + 8.11 = $```
4.22
+ 8.11
------
12.33
```
$95.6 - 36.57 = $```
95.60
- 36.57
------
59.03
```

答案： ☆$7.56 + 2.8 = 10.36$
```
7.56
+ 2.80
------
10.36
```
验算：
```
10.36
2.80
------
7.56
```
☆$13.9 - 6.78 = 7.12$
```
13.90
6.78
------
7.12
```
验算：
```
7.12
+ 6.78
------
13.90
```
$54.9 + 2.57 = 57.47$
```
54.90
+ 2.57
------
57.47
```
$64.52 - 43.8 = 20.72$
```
64.52
43.80
------
20.72
```
$4.22 + 8.11 = 12.33$
```
4.22
+ 8.11
------
12.33
```
$95.6 - 36.57 = 59.03$
```
95.60
36.57
------
59.03
```