6m = cm

dm =30 cm

mm = 10 cm

42 cm = m

6 dm = 60 cm = 600 mm

4 m 50 cm = cm = 4500 mm

mm = cm = dm = 20 m

10 km 18 m = m = cm = mm

km m = 33003 m = dm

m dm cm = 645 cm

mm = dm = 142 m

m mm = 8004 mm = dm mm

6 m 7 dm 8 cm 9 mm = cm mm = m cm mm = mm

8 dm 4 mm = cm mm = mm

m 4 cm = cm = 8040 mm