一年级下册两位数减一位数退位.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,#,两位数减一位数（退位）,我有,30,张画片。,我有,33,张画片。,我有,8,张画片。,小华比小丽多多少张,?,30,8=,20,10,2,22,先算,10,8=2,再算,20+2=22,-,+,我有,30,张画片。,我有,33,张画片。,我有,8,张画片。,小军比小丽多多少张,?,33,-,8=,23,10,2,25,-,+,先算,10,8=2,再算,23+2=25,33,-,8=,20,13,5,25,-,+,先算,13,8=5,再算,20+5=25,40,6=,=,10,6,4,+,=,30,4,34,先算,再算,34,24,9=,=,14,9,5,+,=,10,5,15,先算,再算,15,算一算,10,3=18,9=,40,3=38,9=,60,3=68,9=,90,3=88,9=,32,-,5,小猴摘桃,46,-,9,57,-,8,23,-,6,81,-,7,27,37,49,17,74,智慧城堡,加油啊！,34,-,7,27,(,个,),小宁还要折多少个？,爷爷比小明大多少岁？,66,-,8,58,(,岁,),98-9=,27-8,建房子,19,89,80-7=,73,35-7=,28,33-7=,26,30-5=,25,42-3=,39,61-4=,57,52-6=,46,72-7=,65,98-60=,38,61-3=,58,47-20=,27,82-8=,74,50-6=,44,78-5=,73,42-7=,35,37-9=,28,65-4=,61,胜利！,王宁比李敏多多少张？,31,-,8,23,(,张,),小刚比小雪多用多少钱？,34,-,8,26,20,-,8,12,小雪比小东少用多少钱？,(,元,),(,元,),本课总结,掌握两位数减两位数退位减的计算方法，并能正确的计算其结果。,