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7648保留一位小数是多少
更新时间: 2020-07-09 00:00:00  

自然数保留一位小数要看小数点第二位,如果这个数大于或等于5就进一位,小于的话不用进。保留一位小数又叫做精确到十分位,舍去十分位后面的尾数。如3、56保留一位小数要写成3、6,2、94保留一位小数要写成2、9,8、556保留一位小数要写成8、6,所以7、648保留一位小数是7、6。

关键词: 保留 小数 多少

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