(65加250)除(32减17)用简便运算计算

2025-04-11 19:47:25
推荐回答(1个)
回答1:

(65+250)÷(32-17)
=(65+250)÷15
=(65÷5+250÷5)÷3
=(13+50)÷3
=63÷3
=21