9算一算
$25 + 14 =$
$38 + 2 =$
$36 - 9 =$
$43 + 20 =$
$75 - 40 =$
$35 - 5 =$
$16 + 42 =$
$78 - 50 =$
$50 - 23 =$
$64 + 25 =$
$92 - 20 =$
$62 - 8 =$
$37 + 30 =$
$58 - 4 =$
$62 - 12 =$
$54 + 13 =$
$71 - 40 =$

1. $25 + 14 = 39$
2. $38 + 2 = 40$
3. $36 - 9 = 27$
4. $43 + 20 = 63$
5. $75 - 40 = 35$
6. $35 - 5 = 30$
7. $16 + 42 = 58$
8. $78 - 50 = 28$
9. $50 - 23 = 27$
10. $64 + 25 = 89$
11. $92 - 20 = 72$
12. $62 - 8 = 54$
13. $37 + 30 = 67$
14. $58 - 4 = 54$
15. $62 - 12 = 50$
16. $54 + 13 = 67$
17. $71 - 40 = 31$

列竖式计算
$42 + 26 =$
$62 - 38 =$$$$$$$70 - 11 =$$55 + 29 =$$

$32 + 51 =$
$83 - 27 =$$$$$94 - 36 =$$25 + 45 =$$

1. $42 + 26 = 68$
竖式：
```
42
+ 26
--
68
```
2. $62 - 38 = 24$
竖式：
```
62
38
--
24
```
3. $70 - 11 = 59$
竖式：
```
70
11
--
59
```
4. $55 + 29 = 84$
竖式：
```
55
+ 29
--
84
```
5. $32 + 51 = 83$
竖式：
```
32
+ 51
--
83
```
6. $83 - 27 = 56$
竖式：
```
83
27
--
56
```
7. $94 - 36 = 58$
竖式：
```
94
36
--
58
```
8. $25 + 45 = 70$
竖式：
```
25
+ 45
--
70
```