用简便方法计算65×66分之65,GG,MM,记得是简便方法.
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用简便方法计算65×66分之65,GG,MM,记得是简便方法.
用简便方法计算65×66分之65,GG,MM,
记得是简便方法.
用简便方法计算65×66分之65,GG,MM,记得是简便方法.
65×65/66
=(66-1)×65/66
=65-65/66
=64+1/66