问题
填空题
化简下列各式: ①-[-(-3.5)]=______; ②|-(+3
|
答案
①-[-(-3.5)]=-(+3.5)=-3.5;
②|-(+3
)|=|-31 3
|=31 3
.1 3
故应填:-3.5,3
.1 3
化简下列各式: ①-[-(-3.5)]=______; ②|-(+3
|
①-[-(-3.5)]=-(+3.5)=-3.5;
②|-(+3
)|=|-31 3
|=31 3
.1 3
故应填:-3.5,3
.1 3