小学数学人教一年级两位数加减一位数、整十数.pptx

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,2017/5/9,#,45,人,3,人,30,人,45 +3 =,40,5,8,48,45 +3 =,48,45 +3 =,75,45 +3 =48,45 +30 =75,个位加个位,十位加十位,十位,个位,十位,个位,65-2,=,65-20,=,试一试,63,45,37,73,29,74,75,93,53,26,82,28,33+4=,24+5=2+73=56-3=88-6=,33+40=,24+50=20+73=56-30=88-60=,两位数加减一位数,两,位数加减整十数,彩带拉拉拉,20,70,20,20,10,2,7,3,4,50,20,30,33,10,24,20,30,37,42,62,86,42,66,40,24,62,20,直接报答案,62,7,86-2,37-4,42,3,33,45,69,84,6,2,7,8,6-2,3,7,-,4,4,2,3,3,3,4,5,6,9,8,4,6,2,7,8,6-2,3,7-4,4,2,3,3,3,4,5,6,9,8,4,-,+,-,37 4=33,42+3=45,62,+,7,=69,86 2=84,直接,说出个位,是几,23,3,+,5,44,+,45,2,-,67,4,-,6,3,-,4,3,+,20,70,20,20,10,10,30,20,30,50,20,30,33,10,24,20,30,23,47,64,76,42,66,40,24,62,20,直接报答案,-,+,+,+,-,-,+,+,64,30,76-10,23,30,47-20,53,27,94,66,6,4,3,0,7,6-,1,0,2,3,3,0,4,7-,2,0,5,3,2,7,9,4,6,6,6,4,3,0,7,6-,1,0,2,3,3,0,4,7-,2,0,5,3,2,7,9,4,6,6,23,30,53,47 20,27,64,30,94,76 10,66,20,70,20,20,10,40,30,36,20,50,20,30,33,10,24,20,30,55,60,46,52,4,6,40,24,62,20,直接,说出十位,是几,+,+,-,-,+,+,86-4=46,（元）,4,角,22,元,86,元,4,元,16,元,50,元,4,元,5,元,5,角,82,食品店,蛋糕比蛋挞贵多少呢？,4,角,22,元,86,元,4,元,16,元,50,元,4,元,4,元,5,角,食品店,4,元,5,角,+4,元,=8,元,5,角,4,元,5,角,+4,角,=4,元,9,角,Biubiu,游戏,25,30,15,2,0,5,10,25,30,15,2,0,5,10,谁赢了？,小,军,25+20=45,（分）,小红,30+5=35,（分）,45,35,小军赢了！,大家一起动起来,66,20,99,10,51,2,69,6,24,4,29,1,39-5,34-2,34,28,32,28,63,53,86,89,快乐跷跷板,这节课你收获了什么？,