五年级数学下册5.1《分数除法(一)》课件2北师大版.ppt

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把一张纸的 平均分成2份,每份是这张纸的几分之几?,把一张纸的 平均分成3份,每份是这张纸的几分之几?分一分,涂一涂。,算一算,说一说。,4,3,1,3,1.先画一画,再涂一涂,再用算式表示结果。,的一半是多少?,把 平均分成5份,每份是多少?,2.在 里填上的数,在 里填上“”“”或“”。,3.算一算。,4.填一填。,5.把一块巧克力的 平均分成3份,每份是这块巧克力的几分之几?画一画,算一算。,6.一只蚂蚁15秒爬了 dm,平均每秒爬多少分米?,7.一瓶果酱有 kg,淘气家5天吃完,平均每天吃多少千克?相当于多少克?,你学到了什么?,

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