1 metre=100 centimetres; 12 metres are 12x100=1200centimetres.
700 meters
100 centimeter in 1 meter
None, because there is no such thing as cenemeters. 100 centimetres = 1 metre so 10 cm = 10/100 = 0.1 metres.
36. lengths of 2.77... metres each
2.4km is 240,000cm
25.6 inches
An inch has 2.54 cenemeters in it. That can be rounded to 2.5 === Centimetres, too, not "cenemeters". As for rounding like that... it may work over a very short length but would soon introduce a significant error in measurements.
1 inch=2.54 centimeters
4 decimeters
1 cm = 10 mm
12 meters is 12,000 millimeters.
12 meters = 13.12 yards.