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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,*,20,以内的进位加法,5,、,4,、,3,、,2,加几,绿色圃中小学教育网,http:/,20以内的进位加法5、4、3、2加几绿色圃中小学教育网htt,1,口算练习,9,6,15,8,5,13,7,4,11,6,6,12,8,6,14,7,8,15,9,4,13,口算练习96158513741166128,2,5,7,5 7,2,3,10,12,5 7,5,2,10,12,7,5,12,5,7,12,575 7 2310125 7 521012,3,5,8,5 8,3,2,10,13,5 8,5,3,10,13,8,5,13,5,8,13,585 8 3210135 8 531013,4,4,8,4 8,2,2,10,12,4 8,6,2,10,12,8,4,12,4,8,12,484 8 2210124 8 621012,5,3,9,3 9,2,1,10,12,3 9,7,2,10,12,9,3,12,3,9,12,393 9 2110123 9 721012,6,1.,5,6,11,4,7,11,1.56114711,7,11,12,13,14,11,12,13,11,12,111213141112131112,8,13,11,1311,9,新人教版一年级上册数学5、4、3、2、加几及练习二十二的ppt课件,10,7,5,12,7512,11,8,6,9,8,9,9,869899,12,16,11,12,13,14,15,1.,摘水果。,巩固练习,3,8,4,7,5,8,3,9,7,8,8,6,6,7,4,9,6,6,7,9,2,9,5,9,1611121314151.摘水果。巩固练习3847,13,5 +7 =7 +5 =,5 +8 =8 +5 =,4 +8 =8 +4 =,3 +9 =9 +3 =,12,13,12,12,交换加数的位置,得数不变。,5 +7 =7 +5 =121312,14,
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