题目内容
| 5 |
| 11 |
| 2 |
| 5 |
| 1 |
| 3 |
| 5 |
| 6 |
分析:先算小括号里面的加法,再把中括号里面的除法变成乘法,然后运用乘法结合律简算.
解答:解:
×[(
+
)÷
],
=
×[
÷
],
=
×
×
,
=
.
| 5 |
| 11 |
| 2 |
| 5 |
| 1 |
| 3 |
| 5 |
| 6 |
=
| 5 |
| 11 |
| 11 |
| 15 |
| 5 |
| 6 |
=
| 5 |
| 11 |
| 11 |
| 15 |
| 6 |
| 5 |
=
| 2 |
| 5 |
点评:成本题要注意分析式中数据,运用合适的方法计算.
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