计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______

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计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______计算:(m+

计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______
计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______

计算:(m+3m+5m+…+2009m)-(2m+4m+6m+…+2008m)=_______
=m+(3m-2m)+(5m-4m)+……+(2009m-2008m)
=m+m+m+……+m
=1005m