1)  15 centimeters = millimeters

   2)  6 meters = centimeters

   3)  8300 centimeters = meters

   4)  2200 centimeters = meters

   5)  27000 meters = kilometers

   6)  33 meters = millimeters

   7)  900 millimeters = centimeters

   8)  71 centimeters = millimeters

   9)  120 millimeters = centimeters

  10)  55 meters = centimeters