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Published: 2007-11-25 17:49:12.589998 Category: Measuring Instruments Type: Photo Model release: NoShare
old fashion calculations.
Contributor: Microdac
ID : 5205886
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Keywords
crayons, yellow, calculation, calculation, mathematic, arithmetic, fuel, flying, flight, mathematic, student, boy, girl, lesson, classroom, classroom, teacher, teaching, high school, engineering, engine, consumption, ancient, history, counting, count, speed, map, mapping, chart, chartRelated items
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