20.012x75+2001x0.25
=20.012x75+20.01x25
=60.036x25+20.01x25
=(60.036+20.01)x25
=80.046x25
=20.0115x(4x25)
=2001.15
二十点零一二乘以七十五加二千零一乘以零点二五的简便计算
二十点零一二乘以七十五加二千零一乘以零点二五的简便计算
数学人气：895 ℃时间：2019-09-26 00:19:57
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