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一年级破十法怎么做
更新时间： 2021-01-28 03:40:33  

1、一年级破十法是指十几减几的退位减法的一种计算方法。

2、计算方法，先把十几分成10和个位数，10先减去减数，得到的再差加上个位数。如：

13-4=10-4+3=6+3=9

18-9=10-9+8=1+8=9

11-5=10-5+1=5+1=6

关键词： 年级 怎么

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