题目内容
计算:(
+
×1
)÷[(4-2
)×3].
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| 3 |
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(
+
×1
)÷[(4-2
)×3].
=(
+
×
)÷[
×3].
=(
+1)÷4,
=
×
,
=
.
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| 7 |
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=(
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| 7 |
| 7 |
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=(
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=
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| 1 |
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=
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| 3 |
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