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99*99的简单方法
更新时间: 2021-11-30 21:06:52  

99乘以99等于99乘以(100减1)等于9900减去99等于9801,算式为:99*99=99*(100-1)=99*100-99*1=9900-99=9801

关键词: 简单 方法

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