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 13.5 cm = 135 mm
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13.5 millimeters is the same length as 1.35 centimeters.
A millimeter is One One-thousandth of a meter (the prefix milli indicates 1/1000)
A centimeter is One One-hundredth of a meter (the prefix centi indicated 1/100)
This tells us that a centimeter is equal to 10 millimeters, so to convert from millimeters to centimeters, we can divide by ten. So the derivation of the answer to your question is:
(13.5mm) x (1cm/10mm) = 1.35cm The ease of comparing units is one reason the metric (SI) system was adopted.
150 millimeters is equal to 15 centimeters.
1 centimeters = 10 millimeters; so 130 millimeters is 13 centimeters
190 millimeters is equal to 19 centimeters. To convert millimeters to centimeters, you divide by 10.
1,656 millimeters=165.6 centimeters
500 centimeters is 5,000 millimeters.