2十4十6一直加到2010等于多少?

2025-06-29 06:24:42
推荐回答(3个)
回答1:

2+4+6+.....+2010
=2(1+2+3+....+1005)
=2(1+1005)*1005/2
=1011030

回答2:

2+4+6+……+2010
=2(1+2+3+……+1005)
=2(1+1005)*1005/2
=1006*1005
=1,011,030

回答3:

2+4+6+……+2010
=(2+2010)+(4+2008)+……+(1004+1008)+1006
=2012*502+1006
=1011030