Question 9874
You are using the metric system so all u have to do is move the decimal to the right or left. When you make cm into mm u move once to the right. So...


92cm =____920___mm
 61cm=___610____mm
 51cm=___510____mm

and when you have meters to milimeters you move 3 times to the right. So..

 735m=___735000____mm

I hope u understand it now

Bye

p.s. it is also good to use ur common sence when converting the metric system 
example: u know that a mm is smaller than a meter, so if u have 5 meters than u whould have a larger number of mm than meters so you know its..... 5000mm=5meters
Do you understand what im tring to say?