`28 cm = 28/100 m = 0,28 m`
`3000 cm = 3000/100 m = 30 m`
`105 dm = 1050 cm`
`4500 m = 4500/100 hm = 45 hm`
`213 m = 2130 dm`
`730 cm = 730/1000 dam = 0,73 dam`
`15 km = 15000 m`
`18000 m = 18000/10 dam = 1800 dam`
`7 m` `25 cm = 700 cm + 25 cm = 725 cm`
`165 dm = 0 km` `16,5 m`
`2 km` `58 m = 2000 m + 58 m = 2058 m`
`2080 m = 2 km` `80 m`