0.1+0.01+0.001+0.0001+.=2009/()
1/0.1-1/0.01-1/0.001-1/0.0001.=?
1-0.1-0.01-0.001-0.0001.-0.0000000001
0.1/0.01*0.001/0.0001 如何简便
1减0.1减0.01减0.001减0.0001
11-0.1-0.01-0.001-0.0001……-0.00000000 =
0.1,0.01,0.001,0.0001的通项公式是什么
1-0.1-0.01-0.001-0.0001-……-0.000000001怎么算
1/0.1/0.01/0.001/0.0001/0.00001/0.000001/0.0000001/0.0000000
就是0.1万=?(多少),0.01万=?(多少),0.001万=多少?0.0001万=多少?
1-0.1-0.01-0.001-0.0001用简便运算怎么算急用
小数的计数单位有0.1 0.01 0.001 0.0001……
1减0.1减0.01减0.001减0.0001减0.00001~0.0000000001怎么巧算?