题目内容
(
-
+
+
)÷(-
).
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| 1 |
| 36 |
原式=(
-
+
+
)×(-36)=-36×
+36×
-36×
-36×
=-28+30-27-14=-39.
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题目内容
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| 9 |
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| 7 |
| 18 |
| 1 |
| 36 |
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| 7 |
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