Answer :
milimeters are 1/1000
centimters are 1/100
so from milli to centi you just divide by 10
so 30 mm = 3 cm
55 mm=5.5 cm
13 mm=1.3 cm
67 mm= 6.7 cm
86 mm = 8.6 cm
164 mm = 16.4 cm
127 mm = 12.7 cm
936 mm = 93.6 cm
centimters are 1/100
so from milli to centi you just divide by 10
so 30 mm = 3 cm
55 mm=5.5 cm
13 mm=1.3 cm
67 mm= 6.7 cm
86 mm = 8.6 cm
164 mm = 16.4 cm
127 mm = 12.7 cm
936 mm = 93.6 cm