9911-(911-799)怎么巧算?

2025-04-15 15:37:42
推荐回答(2个)
回答1:

9911-(911-799)
=9911-911+799
=9000+799
=9799

回答2:

9911-(911-799) 巧算
=9911-911+799
=9000+799
=9799