来自仇晓黎的问题
100-98+96-94+92-90+…+8-6+4-2=______.
100-98+96-94+92-90+…+8-6+4-2=______.
1回答
2020-02-28 01:53
100-98+96-94+92-90+…+8-6+4-2=______.
100-98+96-94+92-90+…+8-6+4-2=______.
100-98+96-94+92-90+…+8-6+4-2.
=(100-98)+(96-94)+(92-90)+…+(8-6)+(4-2),
=2×25,
=50;
故答案为:50.