1.26*0.25+8.74*4/1 用简便方法计算
问题描述:
1.26*0.25+8.74*4/1 用简便方法计算
答
1.26*0.25+8.74*1/4
=1.26*0.25+8.74*0.25
=(1.26+8.74)*0.25
=10*0.25
=2.5