8个鸡蛋重5分之2千克,妈妈买来2.5千克鸡蛋,大元多少个
8个鸡蛋重5分之2千克,妈妈买来2.5千克鸡蛋,大元多少个
数学人气:885 ℃时间:2019-10-20 19:01:47
优质解答
每个鸡蛋为2/5/8=1/20千克重 2.5千克鸡蛋个数为 2.5/(1/20)=50个
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