1.144x5\(20-8)+28x(30-10+6)-540\(108-28-20) =?
(by step )
2.86\(20+23)x38-18x(29-9)\12+7x8 = ?
(by step)
收錄日期: 2021-04-25 21:55:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090204000051KK01485