1m= 100cm
1dm= 10cm
1 km =1000m
1 km = 10000 km
1 km = 100000 cm
Length unit: mm, cm, decimeter, meter.
1mm- refill thickness of ordinary pencils.
1cm- nail width
1 decimeter-the distance from the index finger to the root of the thumb after the hand is spread out.
1m-the distance between hands after the arm is straight.
1 m = 10 decimeter =100 cm =1000 mm.
1 km =1000m