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单击此处编辑母版标题样式,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,二级,三级,四级,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,二级,三级,四级,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,二级,三级,四级,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,二级,三级,四级,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,二级,三级,四级,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,二级,三级,四级,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,二级,三级,四级,五级,*,*,6,+,9,3,5,2,2,4,+,+,+,-,-,-,-,7,9,9,8,10,1,5,6,9,7,1,2,10,9,8,3,1,口算练习,4,8,4,6+935224+-799810156971210,分与合练习,9,5,10,3,10,5,10,2,10,1,10,6,4,7,4,8,9,5,分与合练习 95103105102101106474895,苏教版数学-一年级上册-求未知加数课件,苏教版数学-一年级上册-求未知加数课件,苏教版数学-一年级上册-求未知加数课件,你是怎样想的呢?,8+,(),=10,再放几个是,10,个?,10 8=2,2,8,10,2,未知数,例,8,10,2,你是怎样想的呢?8+()=10再放几个是10,求加法里的未知数,1.,看图填数,2.,用加法,3.,用减法,4.,用分与合,求加法里的未知数1.看图填数2.用加法3.用减法4.用分与合,4+,(),=6,2,再放几瓶就是,6,瓶?,4+()=62再放几瓶就是6瓶?,1,、,5+,(),=8,(),+6=10,7+,(),=8,3+,(),=9,3,6,1,4,1、5+()=8()+6=107+()=8,9+,(),=10,3+,(),=10,5+,(),=9,2,、看算式,画画填填。,1,7,4,9+()=103+()=105+()=92,3,、,3、,2+,(),=10,(),+9=10,(),+3=7 4+,(),=9,8,1,4,5,2+()=10 ()+9=10()+3=,5,、,9,7,5,3,1,5、97531,2+()=10,()+4=10,()+3=8,()+2=6,()+1=7,4+()=9,1+()=3,5,5,4,2,6,8,6,2+()=10()+4=10()+3=8(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,3,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,4,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,8,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,2+()=3+4,0,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,2+()=3+4,()+4,7,2+()=3+4,开火车,2+()=7,5,5,(),+3=5+4,5+4,9,6,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,2+()=3+4,()+4,7,3+(),5,2,1,0,开火车,2+()=106+()=9()+5=96+(,2+()=10,6+()=9,()+5=9,6+()=6,3+(),5,()+4,7,3+(),5,.,.,.,6,5,4,3,开火车,2+()=106+()=9()+5=96+(,6,、在里填“,”,或“,”或“”9756 3+7104+5,2+,=3+4,5,3+6 =4+,5,2+8=7+,=4+,=,+5=,+,3,9,1,5,6,考考你:,7,9,10,2+=3+453+6 =4+,
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