3.5*1.25+1.25+3.5/0.8简便计算
问题描述:
3.5*1.25+1.25+3.5/0.8简便计算
答
3.5*1.25+1.25+3.5/0.8
=3.5*1.25+1.25+3.5*1.25
=1.25*(3.5+1+3.5)
=1.25*8
=10