三年级数学下册2《除数是一位数的除法》口算除法作业新人教版.doc

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1口算除法 1估一估。1614 2824 49067189 3557 35262估一估,连一连。1483 2064 3457商小于 50 商大于 501032 4319 30763平均每只猴子大约能分到多少个桃子?4这些萝卜够小白兔吃 7 天吗?5好又多超市运回一批蔬菜。西红柿 红辣椒 黄瓜826 千克 8 千克 243 千克(1)黄瓜的质量大约是红辣椒的多少倍?(2)你还能提出什么数学问题?并解答。6宏达服装店要用 298 米布给工人们做工作服,每名工人要用布 3 米,估一估,算一算,这些布可以给多少名工人做工作服?2答案140 80 70 50 80 602略3564780(个)4218730(根) 3028 够吃 7 天5(1)243830 (2)略62983100(名) 100199(名)

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