试题详情
1-0.1=0.9
1-0.1-0.01=0.89
1-0.1-0.01-0.001 =0.889
1-0.1-0.01-0.001-0.0001=
1-0.1-0.01-0.001-0.0001-……- =
知识点
参考答案
采纳过本试题的试卷
1-0.1-0.01=0.89
1-0.1-0.01-0.001 =0.889
1-0.1-0.01-0.001-0.0001=
1-0.1-0.01-0.001-0.0001-……- =