0.11+0.12+0.13+......+0.98+0.99 简算
0.11+0.12+0.13+......+0.98+0.99 简算
日期:2021-12-26 22:41:51 人气:1
0.11+0.12+0.13+......+0.98+0.99
=(0.11+0.99)×[(0.99-0.11)÷0.01+1]÷2
=1.1×89÷2
=48.95
=(0.11+0.99)×[(0.99-0.11)÷0.01+1]÷2
=1.1×89÷2
=48.95