Convert to the same units and the difference can be found:
1 cm = 10 mm
→ 2 cm = 2 × 10 mm = 20 mm
→ 2 cm - 18 mm = 20mm - 18 mm = 2mm
2 cm is 2 mm longer than 18 mm
Alternatively, as 10 mm = 1 cm, 2 mm = 2 ÷ 10 cm = 0.2 cm, it can be expressed as 2 cm is 0.2 cm longer than 18 mm.
about 38 cm longer
A half meter is 50 cm. To find out how much longer it is than 33 cm, subtract 33 cm from 50 cm: 50 cm - 33 cm = 17 cm. Therefore, a half meter is 17 cm longer than 33 cm.
It is 32 cm longer because 1 meter is 100 cm
0.27 m longer
about 3.37" or 8.56 cm
18 inches is greater than 18 cm
Half a meter is 50 centimeters. To find out how much longer half a meter is than 27 centimeters, subtract 27 from 50. This gives you 50 cm - 27 cm = 23 cm. Therefore, half a meter is 23 centimeters longer than 27 centimeters.
3 inches is just over 7½ cm
18 cm = 180 mm
An inch is about 2.54 cm and so an inch is longer than a cm
31 cm
300 cm / 100 cm/meter = 3 meters 3 meters is longer than 1 meter; so the sofa is longer than a meter.