问题
填空题
计算:(-1.2)-(-2.1)+(+0.6)=______,化简-[+(-5)]=______.
答案
(-1.2)-(-2.1)+(+0.6)=-1.2+2.1+0.6=1.5,
-[+(-5)]=5.
计算:(-1.2)-(-2.1)+(+0.6)=______,化简-[+(-5)]=______.
(-1.2)-(-2.1)+(+0.6)=-1.2+2.1+0.6=1.5,
-[+(-5)]=5.