Metric System -- One of the reasons measurement can be complicated is that there is more than one system in use. Based on the Ancient Roman system, the metric system is based on powers of 10; which is called decimalization. The metric system has been the preferred European and scientific method of measuring sine the 18th century, but is not part of the International System of Units, which is also standardized. Because the metric system is based on powers of 10, units are easier to align. Scientists use the metric system as a way to have a common measurement between countries and over time. Scientists use notation that makes it easier to conceptualize distances much easier, particularly when these distances are large. Mathematical examples include:

If Mike needed a desk that was 5 feet by 4 feet wide, how many inches of trim would he need for the whole desk....

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