62.5*0.16+2640*0.0625+5.2*6.25+0.625*20
问题描述：
62.5*0.16+2640*0.0625+5.2*6.25+0.625*20
答
62.5*0.16+2640*0.0625+5.2*6.25+0.625*20
=6.25×1.6+26.4×6.25+5.2×6.25+6.25×2
=6.25×(1.6+26.4+5.2+2)
=6.25×35.2
=220