(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/04/29 02:10:38
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
原式
=m+3m+5m+.2014m-2m-4m-6m-.2013m
=m-2m+3m-4m+5m-6m
=m+(3m-2m)+(5m-4m)+(2014m-2013m)
=m+m+.1007个m
=1007m
=m+3m+5m+.2014m-2m-4m-6m-.2013m
=m-2m+3m-4m+5m-6m
=m+(3m-2m)+(5m-4m)+(2014m-2013m)
=m+m+.1007个m
=1007m
(m+3m+5m+...+2014m)-(2m+4m+6m+...+2013m)
(m+3m+5m+...+2015m)-(2m+4m+6m+...+2014m)=
(m+3m+5m+...+2013m)-(2m+4m+6m+...+2012m)
(m+3m+5m.+2013m)-(2m+4m+6m+.+2012m)=?
(m+3m+5m+.+2008m)-(2m+4m+6m+.+2009m)
(m+3m+5m+...+2009m)-(2m+4m+6m+...2008m)
m-2m-3m+4m-5m-6m+7m.2004m=?
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
计算:(m+3m+5m+…+2015m)-(2m+4m+6m+…+2014m)=
(m+3m+5m+7m+.+2009m)-(2m-4m-6m-.-2008m)=?
(m+3m+5m+7m+.+2011m)-(2m+4m+6m+.+2010m) 要说理由!
m-2m-3m+4m-5m-6m+7m-8m-9m+.+2002m-2003m-2004m