Haverhill Public Library
Calculators
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http://bibfra.me/vocab/lite/Concept
Label
Calculators
Name
Calculators
Focus
Calculators
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2
Ada Lovelace, first computer programmer, Amy Hayes
Contemporary's number power, calculator power for the GED : GED math for the Casio fx-260, Robert Mitchell and Judy Reagan
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1
Calculators
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