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1~9个数填一填组成算式

更新时间: 2021-01-11 10:55:00     

1、如果每个算式只有1可以重复使用,则有如下可能:

11-2=13-4 、

12-3=14-5、

13-4=15-6、

14-5=16-7、

15-6=17-6。

2、四则运算的运算性质有加法运算性质、减法运算性质、乘法运算性质、除法运算性质这四种。

关键词: 个数 组成 算式

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