Question

667+618-667+82的简便运算？

Answer 1

667+618−667+82
=667−667+618+82
=618+82
=700

Answer 2

667+618-667+82
=（667-667）+（618+82）
=0+700
=700

Answer 3

667+618-667+82的简便运算：667+618-667+82=（667-667）+618+82=618+82=700