实时热搜: 99×78巧算

99×78巧算 99×78巧算

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99×78巧算 99×78巧算 99×7899X78 =100X78-1X78 =7800-78 =7722

78乘以99简便算法78乘以99简便算法的步骤是: 78×99 =78×(100-1) =78×100-78×1 =7800-78 =7722 解题思路:两个数相乘,其中有一个数可以表示为一个整百数的数字的式子,然后再通过乘法分配律进行分别与被乘数相乘,最后进行减法运算,节省计算量,达到简化的目的

99×78用简便方法怎么计算计算: 99×78 =(100-1)×78 =100×78-1×78 =7722

99×78简便运算99×78 =(100-1)x78 =100x78-1x78 =7800-78 =7722 谢谢,请采纳

99×78简便计算99×78简便计算99X78 =100X78-1X78 =7800-78 =7722

99×78+78用简便计算怎么样算99x78+78x1 (99+1)x78 100x78 7800

99×78的简算四年级99x78 =(100-1)x78 =100x78-1x78 =7800-78 =7722

78×99+78用简便方法计算78×99+78 =78x99+78x1 =78x(99+1) =78x100 =7800

99×78巧算99X78 =100X78-1X78 =7800-78 =7722

99乘78用简便99乘78 =(100-1)x78 =100x78-78 =7800-78 =7722 不明白可以追问! 满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢

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