作业帮0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
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0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
0.1+0.12+0.123+0.1234+.+0.123456789 （有9个0.1,8个0.02,7个0.003...) =0.1*9+0.02*8+0.003*7+0.0004*6……+0.000000009*1 =0.9+0.16+0.021+0.0024+0.00025+0.000024+0.0000021+0.00000016+0.000000009 =1.083676269
(0.1+0.12+0.123+0.1234)*(0.12+0.123+0.1234+0.12345)-(0.1+0.12+0.123+0.1234+0.12345)*(0.12+0.123+0.1234)=
一道简算题~（0.1+0.12+0.123+0.1234）×（0.12+0.123+0.1234+0.12345）-（0.1+0.12+0.123+0.1234+0.12345）×（0.12+0.123+0.1234）
跪拜计算方法：0.1+0.12+0.123+0.1234+.+0.123456789=?
0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
0.1+0.12+0.123+0.1234+.+0.123456789=?此题为简算题.
（0.1＋0.12＋0.123＋0.1234）×（0.12＋0.123＋0.1234＋0.12345）－（0.1＋0.12＋0.123＋0.1234＋0.12345）×（0.12＋0.123＋0.1234）
0.1+0.123=?
0.123+0.234+0.345+.+0.789
0.123化成分数
0.123.化成最简分数
0.123➗0.135等于?
0.123=123吗
0.123=（ ）%
0.123的意义
0.123表示什么
小学奥数题,请高智商的朋友给我讲讲是咋回事?0.1+0.12+0.123+0.1234+0.12345+0.123456+0.1234567+0.12345678+0.123456789=?当然不是让你直接写得数了,麻烦给列下算是,并讲解下.在下不胜感激!
（0.1【1的循环】*0.5625）/（0.123【三的循环】+19/150）
(100+0.123+0.245+8.9)x(0.123+0.245+8.9+12.71)-(100+0.123+0.245+8.9+12.71)x(0.123+0.245+8.9)等于多少