To change from one unit to another in the metric system, multiply or divide by multiples of (answer).

You can change from one unit to another in the metric system by multiplying or dividing by multiples of 10. For example, to convert centimeters into decimeters, you divide the number of centimeters by 10. To convert meters into decimeters, you multiply the number of meters by 10. One advantage of the metric system is that conversion between units is easier than in systems of measurement that require memorizing more complicated conversions.