1357m=..........km......m=............km
184cm=........m.........cm=...........m
5km 240m=................m=.........km
15km 64m=............m=..........km
0,035m=....................cm=.............mm
b)2468kg=.......tạ.........kg=.......tạ
4056g=.................kg................g=.................kg
5 tấn 45kg=...........kg=..........tấn
7taj 9kg=...............kg=.......tạ
0,074 tấn=...................kg=..........tạ