把0.504,0.045,0.54,0.45按从小到大的顺序排列,排在第三位的数是_.

问题描述:

把0.504,0.045,0.54,0.45按从小到大的顺序排列,排在第三位的数是______.

根据分析得,
0.504,0.045,0.54,0.45从小到大排列为:0.045<0.45<0.504<0.54;
故排在第三位的是0.504.
故答案为:0.504.