(15x8)÷(1.5x9)要化成单位一样的。9cm=0.09m
(15x8)÷(1.5x0.09)才对，
之前看错题了哈。
舞蹈房长15m,宽8m,用长1.5m,宽9cm的木板铺地,至少要多少这样的木地板?
舞蹈房长15m,宽8m,用长1.5m,宽9cm的木板铺地,至少要多少这样的木地板?
其他人气：881 ℃时间：2019-11-22 21:17:19
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