小明买9本练习本花了4.5元,如果用20元钱买同样的练习本,可以买多少本?9、运一批煤,18次运了90吨,照这样计算,14次可以运多少吨?10、运一批煤,18次运了90吨,照这样计算,多少次才能运完140吨煤?1
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![小明买9本练习本花了4.5元,如果用20元钱买同样的练习本,可以买多少本?9、运一批煤,18次运了90吨,照这样计算,14次可以运多少吨?10、运一批煤,18次运了90吨,照这样计算,多少次才能运完140吨煤?1](/uploads/image/z/538796-20-6.jpg?t=%E5%B0%8F%E6%98%8E%E4%B9%B09%E6%9C%AC%E7%BB%83%E4%B9%A0%E6%9C%AC%E8%8A%B1%E4%BA%864.5%E5%85%83%2C%E5%A6%82%E6%9E%9C%E7%94%A820%E5%85%83%E9%92%B1%E4%B9%B0%E5%90%8C%E6%A0%B7%E7%9A%84%E7%BB%83%E4%B9%A0%E6%9C%AC%2C%E5%8F%AF%E4%BB%A5%E4%B9%B0%E5%A4%9A%E5%B0%91%E6%9C%AC%3F9%E3%80%81%E8%BF%90%E4%B8%80%E6%89%B9%E7%85%A4%2C18%E6%AC%A1%E8%BF%90%E4%BA%8690%E5%90%A8%2C%E7%85%A7%E8%BF%99%E6%A0%B7%E8%AE%A1%E7%AE%97%2C14%E6%AC%A1%E5%8F%AF%E4%BB%A5%E8%BF%90%E5%A4%9A%E5%B0%91%E5%90%A8%3F10%E3%80%81%E8%BF%90%E4%B8%80%E6%89%B9%E7%85%A4%2C18%E6%AC%A1%E8%BF%90%E4%BA%8690%E5%90%A8%2C%E7%85%A7%E8%BF%99%E6%A0%B7%E8%AE%A1%E7%AE%97%2C%E5%A4%9A%E5%B0%91%E6%AC%A1%E6%89%8D%E8%83%BD%E8%BF%90%E5%AE%8C140%E5%90%A8%E7%85%A4%3F1)
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