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1~9個數填一填組成算式
1~9個數填一填組成算式
更新时间:2024-12-15 18:58:33

  1、如果每個算式隻有1可以重複使用,則有如下可能:

  11-2=13-4 、

  12-3=14-5、

  13-4=15-6、

  14-5=16-7、

  15-6=17-6。

  2、四則運算的運算性質有加法運算性質、減法運算性質、乘法運算性質、除法運算性質這四種。

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