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人教版五年级数学：公因数和公倍数典型应用题：隔天休息问题
人教版小学数学五年级下册：公因数与公倍数典型应用题： 小明的爸爸和妈妈今天休息，三人一起出来游玩。爸爸工作五天休息一天，妈妈工作三天休息一天，那么至少要过几天，三人又可以一起出来玩了？
小升初数学总复习87/299
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