广达集团官网:六年级的计算题

来源:百度文库 编辑:神马品牌网 时间:2024/04/28 16:24:08
1-1/10-1/100-1/1000-......-1/1000..0(10个0)
要过程
可以简便

1-1/10-1/100-1/1000-......-1/1000..0
=1-0.1-0.01-0.001-0.0001-……-0.0000000001
=1-(0.1+0.01+0.001+0.0001+……+0.0000000001)
=1-0.1111111111
=0.8888888889

这个问题很有意思啊!我来看看。为了书写方便设A=10000000000
原式=10000000000/A-1000000000/A-100000000/A-10000000/A-...-1/A
=10000000000/A-(1000000000/A+100000000/A+10000000/A+...+1/A)
=1000000000/A-111111111/A
=8888888889/A
=8888888889 /1000000000
=0.8888888889

这个问题很有意思啊!我来看看。为了书写方便设A=10000000000
原式=10000000000/A-1000000000/A-100000000/A-10000000/A-...-1/A
=10000000000/A-(1000000000/A+100000000/A+10000000/A+...+1/A)
=1000000000/A-111111111/A
=9888888889/A
=9888888889 /1000000000
问题解决!!

9/1000...0(10个0)
原式=(1000...0-111111111)/1000...0

0.8888888889