4分之1*2003+2005*%25+2004*4分之1(简算)

问题描述:

4分之1*2003+2005*%25+2004*4分之1(简算)

=0.25*2003+0.25*2005+0.25*2004
=0.25*(2003+2005+2004)
=0.25*(2004*3)
=(0.25*2004)*3
=501*3
=1503

4分之1*2003+2005*%25+2004*4分之1
= 1/4×(2003 + 2005+ 2004)
= 1/4×6012
= 1503