240×4×24,
=960×24,
=23040(本).
答:这些书架一人能放23040本.
一个图书馆有24个同样的书架,每个书架有4层,每层放240本书.这些书架一共能放多少本书?
一个图书馆有24个同样的书架,每个书架有4层,每层放240本书.这些书架一共能放多少本书?
数学人气:179 ℃时间:2019-08-19 13:11:15
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