zamień na metry:50cm;300mm;20dm0,1km

50 cm = 0.5 m 300 mm = 0.3 m 20 dm = 0.2 m 0.1 km = 100 m licze na naj

50 cm = 0.5m 300mm=0.3m 20dm = 0.2 m 1km=100m proszę bardzo :-)