29.4-5.27-2.43-2.1的简便计算

2025-04-13 02:57:15
推荐回答(1个)
回答1:

29.4-5.27-2.43-2.1
=29.4-(5.27+2.43+2.1)
=29.4-(7.7+2.1)
=29.4-9.8
=19.6