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小学口算技巧10以内
更新时间: 2021-06-19 17:25:03  

1、小学口算技巧10以内主要采用的是“破十法”。

2、对于这种计算方法,有几句口诀要让孩子记住“减9要加1,减8要加2,减7要加3,减 6要加4,减 5要加5,减4要加6,减 3要加7,减 2要加8,减 1要加9”。口诀怎么用,比如计算13-5=(),用口诀“减 5要加5”,那么直接用“13”个位上的3,加上5,最后等于8。

关键词: 小学 技巧 以内

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