1 meter = 100 centimeter
1 meter = 1000 millimeter
therefore, 100 centimeter = 1000 millimeter
>>> 1 centimeter = 1000/100 millimeter
>>> 1 centimeter = 10 millimeter
1 meter = 1000 millimeter
therefore, 100 centimeter = 1000 millimeter
>>> 1 centimeter = 1000/100 millimeter
>>> 1 centimeter = 10 millimeter