36×42-36的简便运算?

2025-03-07 09:03:25
推荐回答(1个)
回答1:

36×42-36简便计算?
解:原式=36×42-36×1
=36×(42-1)
=36×41
=36×(40+1)
=36×40+36×1
=1440+36
=1476