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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,数与代数,练习,1.,你能在,4,分钟之内完成吗?看谁能全部做对。,56,9,64,6,30,9,18,9,63,20,40,8,8,8,7,9,5,6,8,54,8,21,9,42,2.,我说你找。,3.,填一填,并说一说算式中每个数的意思。,8,5,40,颗,5,8,40,颗,40,8,5,盘,4.,按要求画图,再写出算式和得数。,(,1,)每份有,5,个,有,2,份。,(,2,)先画,18,个,再把这些平均分成,3,份。,(,3,)先画,20,个,再每,4,个,1,份圈一圈。,(,4,)先画,3,个,再画,的个数是的,2,倍。,(,1,),5,2=10,(个),(,2,),(,3,),20,4=5,(份),(,4,),3,2=6,(个),4.,按要求画图,再写出算式和得数。,(,1,)每份有,5,个,有,2,份。,(,2,)先画,18,个,再把这些平均分成,3,份。,(,3,)先画,20,个,再每,4,个,1,份圈一圈。,(,4,)先画,3,个,再画,的个数是的,2,倍。,5.,填一填。,24,3,27,7,35,24,6,42,7,6.,运动会。,28,13,57,98,人,7.,4,9,36,元,36,6,6,本,(,1,),7,5=35,(元),(,2,),6,3=18,(元),因为,18,20,,所以小小的钱够。,8.,8.,9.,24,4,6,页,24,8,3,天,10.,左图:,100,56,25=19,(元),右图:,20,3,20=37,(个),(,1,),7,5=35,(岁),(,2,),65,35=28,(岁),(,3,),63,7=9,11.,(,1,),4,6=24,(位),,24,26,,所以坐不下。,(,2,),6,9=54,(元),,54,50,,所以钱不够。,12.,说一说。,14.,填一填。,=8,=62,=45,=73,=83,=22,12,7,74,13.,15.,应付多少钱?,50,元,10,元,4,元,18,元,6,2=3,16.,
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