小学一级数学加几.ppt

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,*,1,9,+,8,=,17,1,7,10,第一关,2,8,+,7,=,15,2,5,10,第二关,3,7,+,5,=,12,3,2,10,第三关,4,6,+,5,=,11,4,1,10,第四关,5,5,、,4,、,3,、,2,加几,6,5 +7=,2,3,10,12,5 +7=,5,2,10,12,装,扮,圣,诞,树,7,交换加数的位置，和不变。,5+7=,小数加大数，一般是看成大数加小数进行计算。,12,5+8=,13,7,+,5,=,3,2,10,12,3,8,+,5,=,2,3,10,13,装,扮,圣,诞,树,8,2025/5/13 周二,9,看图列算式：,+,=,5,6,11,+,=,6,5,11,10,+,=,4,7,11,+,=,7,4,11,看图列算式：,11,5+7,7+5,4+9,9+4,5+9,9+5,3+8,8+3,12,12,13,13,14,14,11,11,请你先观察上下两道题有什么规律，再算一算。,12,算一算，每一种体育用品有多少？,一 班 有,二 班 有,一 共 有,7,个,6,个,5,个,8,个,4,个,7,个,_,个,_,个,_,个,13,13,11,13,一共有,(),个。,+,=,+,=,4,12,12,8,4,12,8,巩固练习：,14,一共有,(),个。,12,巩固练习：,+,=,+,=,3,9,12,9,3,12,15,算一算：,9,+,8,=,17,9,+,6,=,15,8,+,5,=,8,+,6,=,14,13,7,+,5,=,7,+,6,=,13,12,7,+,7,=,6,+,5,=,11,14,16,谢谢！,17,2025/5/13 周二,18,