The prefixes are "milli" (not milla) for 1/1000, and "centi" (not center) for 1/100. One centimeter = 10 mm, therefore, to convert from cm to mm, you simply multiply by 10.
3 centimetres = 30 millimetres, not millameters.
There are 1 centimetres in 10 millimetre, none in 10 millameters.
3.9 centimetres (not centermeters) = 1.54 inches.
None, since there are no such measures as millameters nor centameters. However, 12 millimetres equals 1.2 centimetres.
1 millimetre = 0.1 centimetre.
3 centimetres = 30 millimetres, not millameters.
420 centermeters are in 4.2m
There are 1 centimetres in 10 millimetre, none in 10 millameters.
1000.
3.9 centimetres (not centermeters) = 1.54 inches.
50mm = 5cm
None, since there are no such measures as millameters nor centameters. However, 12 millimetres equals 1.2 centimetres.
218.5
By centermeters, do you mean centimeters? If so, there are 121.92 centimeters in 4 feet.
1 foot = 304.8 millimetres.
1 decimetre = 100 millimetres.
1 millimetre = 0.1 centimetre.