4.7/4+4.3*0.25+0.25 ( 用简便方法计算)
问题描述:
4.7/4+4.3*0.25+0.25 ( 用简便方法计算)
答
4.7/4+4.3*0.25+0.25
=4.7*0.25+4.3*0.25+0.25
=(4.7+4.3+1)*0.25
=10*0.25
=2.5