问题
填空题
把-(-0.5)+(-6)-(-7)+(+2)写成省略加号的代数和的形式是______.
答案
-(-0.5)+(-6)-(-7)+(+2),
=0.5-6+7+2,
故答案为:0.5-6+7+2.
把-(-0.5)+(-6)-(-7)+(+2)写成省略加号的代数和的形式是______.
-(-0.5)+(-6)-(-7)+(+2),
=0.5-6+7+2,
故答案为:0.5-6+7+2.