When comparing or combining an area or volume it is important to measure the objects using the same units. Without converting the areas into the same unit, it might be difficult to tell, for example, ...

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The week of Oct. 10 – that's 10/10 – is National Metric Week because the metric system is based on powers of 10. To change from one unit to another within the system, one has only to move the decimal ...

Those of us here in the United States are used to measuring various physical attributes with the imperial measurement system, which includes feet, inches, gallons, and so on. This system is still ...

Americans have long used diverse weights and measures, reflecting their diverse origins. From colonial times, converting from one unit to another was part of courses in commercial arithmetic. The ...