36*(1⼀2-1⼀3+1⼀4) 简便计算.

2024-12-30 07:33:44
推荐回答(1个)
回答1:

36×(1/2-1/3+1/4)
=36×1/2-36×1/3+36×1/4
=18-12+9
=15