1/0.1/0.01/0.001/0.0001/0.00001/0.000001/0.0000001/0.0000000
1/0.1/0.01/0.001/0.0001/0.00001/0.000001/0.0000001/0.0000000
1÷0.1÷0.01÷0.001÷0.0001÷0.00001÷0.000001÷0.0000001简便算法
1减0.1减0.01减0.001减0.0001减0.00001~0.0000000001怎么巧算?
1-0.1-0.01-0.001-0.0001.-0.0000000001
奥数计算题:1-0.1-0.01-0.001…-0.0000001
1/0.1-1/0.01-1/0.001-1/0.0001.=?
1减0.1减0.01减0.001减0.0001
1-0.1-0.01-0.001-0.0001-……-0.000000001怎么算
1除0.1除0.01除0.001除省略号除0.0000001=?
1除以0.1除以0.01除以0.001除以.除以0.0000001?简便
0.1/0.01*0.001/0.0001 如何简便
1-0.1-0.01-0.001-0.0001用简便运算怎么算急用