tính bằng cách thuận tiện 2001 + 2002 + 2003 + 2004 + 2005 + 2006 + 2007 + 2008 + 2009 + 2010+ 2011 + 2012

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tính bằng cách thuận tiện 2001 + 2002 + 2003 + 2004 + 2005 + 2006 + 2007 + 2008 + 2009 + 2010+ 2011 + 2012

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Kaylee 2 tháng 2021-10-08T18:01:44+00:00 2 Answers 21 views 0

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    0
    2021-10-08T18:02:58+00:00

    (2001+2009)+(2002+2008)+(2003+2007)+(2004+2006)+(2005+2010)+(2011+2012)

    = 4010+4010+4010+4010+4015+4023

    = 16040+4015+4023

    =24078

    #chuc hoc tot

    0
    2021-10-08T18:03:40+00:00

    Đáp án:

     2001+2002+2003+2004+2005+2006+2007+2008+2009+2010+2011+2012

    =(2001+2009)+(2002+2008)+(2003+2007)+(2004+2006)+(2005+2010)+2011+2012

    =4010+4010+4010+4010+4010+(4015+4023)

    =16040+8023

     =24078

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