(1+3+5+7+......+2007)-(2+4+6+......+2006)用简便方法计算

(1+3+5+7+......+2007)-(2+4+6+......+2006)用简便方法计算
2024-12-18 21:08:09
推荐回答(1个)
回答1:

=1+(3-2)+(5-4)+(7-6)+...+(2007-2006)

=1+ 1*1003
=1004