数与代数
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数与代数. 执教老师:王幼彩. 计算结果如下:. 学校买了一捆电线,第一次用去 999.8 米, 第二次用去 米,第三次用去 米,还剩 米。. 请选择 能简算 的题目进行计算。. 你能巧算下面两题吗?.

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数与代数

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数与代数

执教老师:王幼彩


计算结果如下:


学校买了一捆电线,第一次用去 999.8米,

第二次用去 米,第三次用去 米,还剩 米。


请选择能简算的题目进行计算。


你能巧算下面两题吗?


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