660÷(18+26)×28怎么简便计算?

2024-12-01 11:34:43
推荐回答(1个)
回答1:

660÷(18+26)×28
=660÷44x28
=660÷(4x11)x28
=(660÷11)x(28÷4)
=60x7
=420