We are going to take a trip ______ next weekend.对于任意数a,定义运算“※”，a※_英语解答

We are going to take a trip ______ next weekend.
对于任意数a,定义运算“※”，a※b= a×b－a－b，12※4的值是（）

人气：237 ℃　时间：2019-08-18 22:17:21

解答

We are going to take a trip at next weekend
12※4=12*4-12-4=32