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.
218.5
50mm = 5cm
By centermeters, do you mean centimeters? If so, there are 121.92 centimeters in 4 feet.
None, since there are no such measures as millameters nor centameters. However, 12 millimetres equals 1.2 centimetres.
1 millimetre = 0.1 centimetre.
1 decimetre = 100 millimetres.
1 foot = 304.8 millimetres.