题目内容
计算:|-3
|×(
-
)×
÷
×(-3)2÷(-3).
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 12 |
| 7 |
| 3 |
| 2 |
原式=
×
×
×
×9×(-
)
=-
.
| 7 |
| 2 |
| 1 |
| 6 |
| 12 |
| 7 |
| 3 |
| 2 |
| 1 |
| 3 |
=-
| 9 |
| 2 |
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题目内容
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| 1 |
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| 12 |
| 7 |
| 3 |
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| 7 |
| 2 |
| 1 |
| 6 |
| 12 |
| 7 |
| 3 |
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| 9 |
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