220-括号220×上九分之二括号等于多少

220-括号220×上九分之二括号等于多少
2025-12-25 11:22:44
推荐回答(1个)
回答1:

220-(220X2/9)
=220-220X2/9
=220X(1- 2/9)
=220X 7/9
=1540/9