Răspuns :
1m 10dm 100cm 1dm 10cm 100 mm 9km 900hm 9000m 16hm 16000dm 160m 300m 3000dm 3hm
1dm=10cm=100mm
9km=90hm=9000dam
16hm=16000dm=1600m
300m=30dam=3m
74km=7400dam=74000m