题目内容
(2011?兴庆区)40÷[(
-
)×3].
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| 3 |
分析:先算小括号里面的,再算中括号里面的,最后算除法.据此解答.
解答:解:40÷[(
-
)×3],
=40÷[
×3],
=40÷
,
=32.
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=40÷[
| 5 |
| 12 |
=40÷
| 5 |
| 4 |
=32.
点评:本题主要考查了学生分数四则运算的计算能力.
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