计算:-72×(1/4+1/6-1/2)

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计算:-72×(1/4+1/6-1/2)
计算:-72×(1/4+1/6-1/2)

计算:-72×(1/4+1/6-1/2)
-72×(1/4+1/6-1/2)
=-72x1/4-72x1/6+72x1/2
=-18-12+36
=6
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