0.01+0.02+0.03+……+0.98+0.99+0.10怎么算

问题描述:

0.01+0.02+0.03+……+0.98+0.99+0.10怎么算

0.01+0.02+0.03+……+0.98+0.99+0.10=(1+2+.99)/100+0.1=(100*49+50)/100+0.1=49.6