计算:11又4分之3-(+3.25)-(-8又2分之1)-(+0.75)-20又4分之1要过程谢谢
问题描述:
计算:11又4分之3-(+3.25)-(-8又2分之1)-(+0.75)-20又4分之1
要过程谢谢
答
=11.75-3.25+8.5-0.75-20.25
=(11.75-0.75)+8.5-(3.25+20.25)
=11+8.5-23.5
=19.5-23.5
=-4