US Length I
US Length: Learn
The smaller U.S. standard basic units of length are the inch, foot and yard. A foot is twelve inches and a yard is 3 feet or 36 inches.
Many measurements are made that are less than one inch and for these the U.S. system of measurement uses fractions of an inch (1/2, 1/4, 1/8, 1/16 etc.)
There are other units for measuring small lengths but they are used only in specialized areas (mils, points, picas etc.)
US Length: Practice
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Math Lessons by Grade
- Estimation and Mental Math
- Naming Numbers
- Percents and Ratios
- Place Value