计算:0.5-(-3又4分之1)+(1+2.75)-(+5又2分之1)
问题描述:
计算:0.5-(-3又4分之1)+(1+2.75)-(+5又2分之1)
答
0.5-(-3又4分之1)+(1+2.75)-(+5又2分之1)=0.5+3.25+3.75-5.5=7.5-5.5=2
计算:0.5-(-3又4分之1)+(1+2.75)-(+5又2分之1)
0.5-(-3又4分之1)+(1+2.75)-(+5又2分之1)=0.5+3.25+3.75-5.5=7.5-5.5=2