The metric system provides a standardized means of measuring physical qualities, as opposed to assigning arbitrary units that lack consistency. The metric system negates the need for conversions when dealing with a certain unit of measurement as all physical sizes are measured in meters. The metric system's unified measurement scale creates a more precise means of assigning value to a physical quality and is as simple to learn as the prefixes of each unit of measurement that determine value.
Instructions
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1
Use your ruler or tape ruler to measure the desired item.
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2
Convert your measurement from centimeters to meters by multiplying the the length of the item measured by .01.
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3
Convert the item's length in meters to millimeters by multiplying the length in meters by 1,000.