Never heard of "centermiteres" but
1 metre = 100 centimetres so 3 metres = 3*100 = 300 centimetres.
44.49 inches
In 3 kilometers there are 3000 meters.
3000 mm in 3 meters
3 miles = 4,828 meters
9 sq meters
4 meters x 3 meters = 12 square meters.
9 square meters.
3 meters=30 decimeters
3 meters = 0.00186411358 miles.
There are 3,000 milimeters in 3 meters.
300cm = 3 meters
3 kilometers = 3,000 meters