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怎样教会孩子凑十法
更新时间: 2021-06-11 02:28:05  

1、想要掌握凑十法,就必须掌握五大口诀:“9要1”、“8要2”、“7要3”、“6要4”、“5要5”

2、凑十法:一九一九好朋友,二八二八手拉手,三七三七真亲密,四六四六一起走。五五凑成一双手。看大数,分小数,凑成十,加剩数。大数记心里,小数记手里。一加九,十只小蝌蚪,二加八,十只花老鸭,三加七,十只老母鸡,四加六,十只金丝猴,五加五,十只大老虎。看到9想到1,看到8想到2, 看到7想到3,看到6想到4。看到大数加小数,先把两数换位置。

3、破十歌:减九加一、减八加二、减七加三、减六加四、减五加五、减四加六、减三加七、减二加八、破大数,加小数。

关键词: 怎样 教会 孩子

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