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一个加数增加238另一个加数增加174和增加多少

更新时间: 2021-01-17 17:38:37     

1、一个加数增加238,另一个加数增加174,和增加238+174=412。

2、可以用设未知数的方法,假设一个加数为x,另一个加数为y,x+238+y+174=x+y+412。即238+174=412。

关键词: 一个 加数 增加 多少

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