题目内容
| 7 |
| 8 |
| 1 |
| 2 |
| 3 |
| 5 |
| 5 |
| 11 |
分析:解答此题,先要计算小括号内的算式,再计算中括号的,最后计算除法.
解答:解:
÷[(
+
)×
]
=
÷[(
+
)×
]
=
÷[
×
]
=
÷
=
×2
=
.
| 7 |
| 8 |
| 1 |
| 2 |
| 3 |
| 5 |
| 5 |
| 11 |
=
| 7 |
| 8 |
| 5 |
| 10 |
| 6 |
| 10 |
| 5 |
| 11 |
=
| 7 |
| 8 |
| 11 |
| 10 |
| 5 |
| 11 |
=
| 7 |
| 8 |
| 1 |
| 2 |
=
| 7 |
| 8 |
=
| 7 |
| 4 |
点评:解题的关键是掌握分数的四则混合运算的计算方法.
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