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This activity is an exercise in adding and subtracting time and how to use a time zone map of the world. A Teacher's Guide and answers to the questions are provided.
http://spacemath.gsfc.nasa.gov/weekly/WeekAL.pdf
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Available in the following languages
لِکِکال
چرکن کيکالا
جواز/ چاپس حق دارکاليى
CC 0 / public domain
