27.38-5点三四 2点六二-4点六六的简便计算

27.38-5点三四 2点六二-4点六六的简便计算
2025-04-24 05:43:45
推荐回答(1个)
回答1:

27.38-5.34+2.62-4.66
=(27.38+2.62)-(5.34+4.66)
=30-10
=20