简算.0.01+0.02+0.03省略号+0.98+0.99
问题描述:
简算.0.01+0.02+0.03省略号+0.98+0.99
答
用0.01+0.99+0.02+.0.98+……+0.55=1+1+1+……+0.55=1X49+0.05=49.5
答
其实就是从1加到99, 49.5,0.01+0.99=1,0.02+0.98=1,一共有49个1,中间还有一个0.5,所以结果就是49.5
答
0.01+0.02+0.03......+0.98+0.99
=1乘49+0.05
=49.5
答
(0.01+0.99)+(0.02+0.98).....最后一个0.50
=1乘以49加0.50=49.5
答
=(0.01+0.99)+(0.02+0.98)+……+(0.46+0.54)+(0.47+0.53)+(0.48+0.52)+(0.49+0.51)+0.50
=1×49+0.50
=49.5