名家优质课小学数学——刘德武两位数加减法练习课.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,#,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,#,1,、,口算。,24+32=,84-24=,45+13=,57-45=,5+44=,63-40=,24+32=,56,84-24=,60,45+13=,58,57-45=,12,5+44=,49,63-40=,23,2,、,笔,算。,53+28=,53-28=,5 3,2 8,+,1,8,1,8,5 3,2 8,-,5,2,5,2,3,、,拔萝卜,。,大于,50,退位减,小于,50,不退位,减,3,、,拔萝卜,。,46,34,+,46,34,+,76,39,-,76,39,-,6,2,-,6,2,-,24,2,+,8,24,2,+,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,-,99,49,-,99,49,-,66,44,-,66,44,-,64,46,-,64,46,-,75,2,1,2,3,4,5,6,7,8,9,0,1,2,3,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,-,75,2,5,4,、,水果盖住的数是几？,8,4,9,5,-,5,2,8,4,9,5,-,5,2,4,、,水果盖住的数是几？,4,、,水果盖住的数是几？,2,8,8,8,6,5,2,8,8,8,6,5,4,、,水果盖住的数是几？,7,3,4,、,水果盖住的数是几？,5,、,比比谁的得数大？,01234,56789,+,=,+,=,