题目内容
| 9 |
| 10 |
| 1 |
| 2 |
| 6 |
| 5 |
| 3 |
| 10 |
分析:按照先算小括号里面的,再算中括号里面的,最后算括号外面的顺序解答.
解答:解:
÷[
×(
-
)],
=
÷[
×
],
=
÷
,
=2.
| 9 |
| 10 |
| 1 |
| 2 |
| 6 |
| 5 |
| 3 |
| 10 |
=
| 9 |
| 10 |
| 1 |
| 2 |
| 9 |
| 10 |
=
| 9 |
| 10 |
| 9 |
| 20 |
=2.
点评:正确依据四则运算计算顺序进行计算是本题考查的知识点.
练习册系列答案
相关题目