18-3.999怎样简便计算

2024-11-16 18:52:47
推荐回答(4个)
回答(1):

18-3.999
=18-4+0.001
=14+0.001
=14.001

回答(2):

18-3.999
=18-(4-0.001)
=18-4+0.001
=14+0.001
=14.001

回答(3):


过程如图这样

回答(4):

18-(4-0.001)=18-4+0.001=14.001