六年级数学..英文的,用加减乘除的方式帮我~!谢谢!
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六年级数学..英文的,用加减乘除的方式帮我~!谢谢!
如题:
A set of dictionaries which fitted exactly 4 shelves,each 2.05 m long,was replace by a new set.Every 7 old dictionaries was replaced by 4 new ones,each 5 cm thick.If the new set of dictionaries also fitted the 4 shelves exactly,what was the difference in the number of dictionaries between the two sets ?
这道题很乱那..看不懂额..谁帮我..? 算式用【加减乘除】的方式写给我..谢谢..
如题:
A set of dictionaries which fitted exactly 4 shelves,each 2.05 m long,was replace by a new set.Every 7 old dictionaries was replaced by 4 new ones,each 5 cm thick.If the new set of dictionaries also fitted the 4 shelves exactly,what was the difference in the number of dictionaries between the two sets ?
这道题很乱那..看不懂额..谁帮我..? 算式用【加减乘除】的方式写给我..谢谢..
![六年级数学..英文的,用加减乘除的方式帮我~!谢谢!](/uploads/image/z/17043289-25-9.jpg?t=%E5%85%AD%E5%B9%B4%E7%BA%A7%E6%95%B0%E5%AD%A6..%E8%8B%B1%E6%96%87%E7%9A%84%2C%E7%94%A8%E5%8A%A0%E5%87%8F%E4%B9%98%E9%99%A4%E7%9A%84%E6%96%B9%E5%BC%8F%E5%B8%AE%E6%88%91%7E%21%E8%B0%A2%E8%B0%A2%21)
一套字典放在4个书架上,每个2米05.现在用一套新的字典换掉旧的.每7本旧的字典用4本新的换掉,每本5厘米厚.如果新的字典也刚好放进4个书架,问旧的那套字典比新的多几本?
205乘以4 得总长度
再除以5 得新字典多少本
再除以4乘以3 因为每4本新字典就比老的少3本,得出差值
123本
205乘以4 得总长度
再除以5 得新字典多少本
再除以4乘以3 因为每4本新字典就比老的少3本,得出差值
123本