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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,*,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,*,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,*,北师大版一年级上册数学,小兔请客,课件,口答下列各题:,(,1,)、,2,个十是,(,),(,2,)、,5,个十是,(,),(,3,)、,10,个十是(,),(,4,)、,90,里面有,(,)个十,(,5,)、,70,里面有,(,)个十,(,6,)、,40,里面有(,)个十,2 0,5 0,100,9,7,4,一共有多少个果子?,30+20=,20+30=,50,(个),50,(个),+,=,(根),30,20,50,加,数,加,数,和,每捆,10,根,练一练,1,(根),+,=,40,20,60,每捆,10,根,40+50=,2,、练一练,90,60+20=,80,还剩多少个果子?,每盘,10,个果子,50 10=,40,(个),每捆,10,根,=,(根),50,10,40,被减数,减数,差,练一练,1,(根),-,60,20,40,每捆,10,根,2,、练一练,90 30 =,60,80 50 =,30,3,0,+2,0,=5,0,5,0,-1,0,=4,0,4,0,+5,0,=9,0,6,0,+2,0,=8,0,9,0,-6,0,=3,0,8,0,-5,0,=3,0,整十数加减整十数,我一定行,6,3,4,2,60,30,40,20,9,2,8,5,90,20,80,50,9,90,7,70,6,60,3,30,开火车计算:,-10,+30,-50,+60,90-30,-40,+50,+10,-60,30+20,50,40,70,20,80,60,20,70,80,20,加数,和,60,50,40,20,填一填,100,70,被减数,减 数,差,90,100,40,20,50,80,加数,试一试,50,30,20,80,20,30,50,40,60,80,100,60,要求:提出数学问题并列式计算。,梨,30,个,橘子,40,个,苹果,50,个,优,考考自己,谢谢各位老师,
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