There are 10 mm in 1 cm, SO ...
10 x 8.2 = 82 cm
82 cm = 820 mm
10 mm = 1 cm so 82 mm = 82/10 cm = 8.2 cm. Simple!
u mom
82 cm = 820 mm
82
Since 1 cm is 10 mm, 82 cm must be 820 mm.
82 mm is equal to 8.2 cm. To convert millimeters to centimeters, divide the number of millimeters by 10.
82 mm is equal to 8.2 cm when converted to centimeters. Just divide the length in millimeters by 10 to convert it to centimeters.
82 mm is more precise because you are missing 0.2 for 8 cm. If you want your number in cm then 8.2 cm is just as precise as 82 mm.
3.228346457 in Direct Conversion Formula 82 mm* 1 in 25.4 mm = 3.228346457 in
1 cm = 10 mm so 1.43 cm = 14.3 mm
1 cm = 10 mm.