题目内容
-(
)×(-
)2+
÷[(-
)3-
].
| 9 |
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原式=-
×
+
÷(-
-
)
=-5+
÷(-
)
=-5-1
=-6.
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| 9 |
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=-5+
| 3 |
| 8 |
| 3 |
| 8 |
=-5-1
=-6.
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题目内容
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