Remember K H D | d c m (kilo, hecto, deka, (liter, meter, gram), deci, centi, milli). Millimeters are one place to the right of centimeters. So you have to move the decimal place once to the right. You will get 3.21 cm = 32.1 mm.
to change from centimeter to millimeter multiply by ten
to change from millimeter to centimeter divide by ten
so 2.1 mm is 0.21 cm
hope that helps
15 centimeters are in 150 millimeters.
1 centimeters = 10 millimeters; so 130 millimeters is 13 centimeters
120 millimeters is the same as 12 centimeters.
3,000 centimeters is 30,000 millimeters.
190 millimeters = 19 centimeters
321 centimeters=3.21 meters
22 millimeters=2.2 centimeters
15 centimeters are in 150 millimeters.
70 millimeters=7 centimeters
6.98 centimeters=69.8 millimeters
There are 49 centimeters in 490 millimeters. To convert millimeters to centimeters, you divide the value in millimeters by 10.
2.1 centimeters=21 millimeters
1 centimeters = 10 millimeters; so 130 millimeters is 13 centimeters
120 millimeters is the same as 12 centimeters.
7,000 centimeters = 70,000 millimeters.
1,656 millimeters=165.6 centimeters
3,000 centimeters is 30,000 millimeters.