3/8*5/4+1.25+0.625*1.25 简算

问题描述:

3/8*5/4+1.25+0.625*1.25 简算

3/8*5/4+1.25+0.625*1.25
=0.375*1.25+1.25+0.625*1.25
=1.25*(0.375+1+0.625)
=1.25*2
=2.5

3/8*5/4+1.25+0.625*1.25
=1.25*(3/8+1+0.625)
=1.25*2
=2.5

3/8*5/4+1.25+0.625*1.25
=0.375*1.25+0.625*1.25+1.25
=(0.375+0.625+1)*1.25
=2*1.25
=2.5