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6.58的计数单位是(),6.580的计数单位是().

题目详情
6.58的计数单位是( ),6.580的计数单位是( ).
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答案和解析
小数的计数单位有0.1,0.01,0.001,0.0001,0.00001.
所以呢,6.58的计数单位是0.01,
6.580的计数单位是0.001