CK-12 Foundation
Ck 12: Elem Math: Using Symbol Maps With Compound Units
[Free Registration/Login may be required to access all resource tools.] The video describes how to determine distance traveled using a symbol map, and convert between different units of measurement. The video is followed by additional...
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Allmath.com: Metric Converter
Use this converter to find equivalent units for a measure. You can convert measures for area, length, weight, temperature, and volume.