问题
填空题
计算:2-(-3)=______,-(-2)3=______,a-(b-c)=______.
答案
2-(-3)=2+3=5;
-(-2)3=-(-8)=8;
a-(b-c)=a-b+c.
故答案是5;8;a-b+c.
计算:2-(-3)=______,-(-2)3=______,a-(b-c)=______.
2-(-3)=2+3=5;
-(-2)3=-(-8)=8;
a-(b-c)=a-b+c.
故答案是5;8;a-b+c.