Question

大于0.2小于0.3的小數(shù)有（　　）個．

A．0

B．9

C．無數(shù)

Answer 1

分析：大于0.2小于0.3的小數(shù)有兩位小數(shù)，三位小數(shù)，四位小數(shù)…據(jù)此解答．

解答：解：大于0.2小于0.3的小數(shù)有0.21，0.256，0.2687…，有無數(shù)個．
故選：C．

點評：本題可用例舉法找出大于0.2小于0.3的小數(shù)再進(jìn)行解答．