用邊長30厘米的正方形地磚鋪一段長12米，寬6米的人行道路面.
①至少需要多少塊這樣的地磚?
②如果地磚每平方米的售價是35元，那么購買地磚至少應花多少元?
解：① 12× 6÷( 0.3 × 0.3)
=72÷ 0.09
=800(塊)
②12× 6× 35=2520(元)
答：至少需要 800 塊這樣的地磚，購買地磚至少應花2520元
暫無解析
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