How to convert. 3mm to cm

Question

I need. Help finding where to put the decimal whem converting. 3Mm to cm

Answer 1

Using the conversion factor 10 mm = 1 cm, then we have:

 

1 mm = 1/10 = 0.1 cm

 

Therefore, 3 mm = 3 * 0.1 = 0.3 cm