660÷55-120÷24的简便算法

分类: 作业答案 • 2021-12-20 05:39:10

问题描述：

660÷55-120÷24的简便算法

答

660÷55-120÷24
= 6×110÷55 - 240÷24/2
= 6×2 - 10 / 2
= 12 - 5
= 7

答

=11×60÷（11÷5)-5
=60÷5-5
=12-5
=7

答

660÷55-120÷24
=660÷11÷5-120÷12÷2
=60÷5-10÷2
=12-5
=7