The answer is 85cm because 10 mm equals 1 cm. So that means a mm is smaller than a cm. And a crayon cant be 85 meters,cm, or decimeters.
850mm in 85cm
85cm = 850mm
6.3 centimeters equals 63 mm.
1000 mm equals one meter
1.5 cm equals 15 mm.
1 km equals 100,000 mm
15 mm
457.2 mm.
63 mm
84 mm ;-)
6,800 mm