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The top documents tagged [counting devices]
By: Ashley Margolis. What is an Abacus An abacus is one of the first counting devices It is used for addition, subtraction, multiplication and division
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Spreadsheets 2007/2010 version
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Wes Bruce – PARCC Brandt Redd – Smarter Balanced Scott Elliot – ELPA 21 ASSETS – Carsten Wilmes Neal Kingston – DLM Chris Domaleski - NCSC Philip Olsen
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