m-0.4+2m-1.8等于多少?

2025-05-02 01:48:37
推荐回答(4个)
回答(1):

m-0.4+2m-1.8=3m-2.2

回答(2):

m一0.4十2m一1.8
二3m一2.2

回答(3):

m-0.4+2m-1.8
=m+2m-0.4-1.8
=3m-(0.4+1.8)
=3m-2.2

回答(4):

m-0.4+2m-1.8等于多少?
m-0.4+2m-1.8
=m+2m-0.4-1.8
=3m-2.2