24.8/8=3.1
24.8/10=2.48
3.1-2.48=0.62
一箱伊利牛奶8袋共24.80元,一袋牛奶的单价是多少?现在超市搞促销 买一箱送两袋 世纪一代多少?比原来便宜
一箱伊利牛奶8袋共24.80元,一袋牛奶的单价是多少?现在超市搞促销 买一箱送两袋 世纪一代多少?比原来便宜
数学人气：682 ℃时间：2020-03-17 16:12:11
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