Bài 2: Viết số thích hợp vào chỗ chấm: a) 3dm^3=ldots ldots ldots ldots ldots ldots ldots cm^3 b) 0,7dm^3=ldots ldots ldots ldots ldots ldots ldots cm^3 125dm^3=ldots ldots ldots ldots ldots ldots ldots cm^3 4,05dm^3=ldots ldots ldots ldots ldots ldots ldots cm^3 (4)/(5)dm^3=ldots ldots ldots ldots ldots ldots cm^3 (5)/(8)m^3 =ldots ldots ldots ldots ldots ldots ldots dm^3

a) (Vì 1dm = 10cm, nên )b) ( ) (Vì , nên . )