题目内容
计算:5
-(4
-2
).
| 5 |
| 7 |
| 11 |
| 13 |
| 2 |
| 7 |
5
-(4
-2
)
=5
-4
+2
,
=5
+2
-4
,
=8-4
,
=3
.
| 5 |
| 7 |
| 11 |
| 13 |
| 2 |
| 7 |
=5
| 5 |
| 7 |
| 11 |
| 13 |
| 2 |
| 7 |
=5
| 5 |
| 7 |
| 2 |
| 7 |
| 11 |
| 13 |
=8-4
| 11 |
| 13 |
=3
| 2 |
| 13 |
练习册系列答案
相关题目