"Calculators"

Smithsonian Learning Lab
Contributed By
Smithsonian Learning Lab
Resource Type
Classroom Material
Keywords
Operations and Algebraic Thinking Proportions and Ratios
Related Resources

"Calculators"

Any item used to calculate sums, differences, products, or quotients. Items are aides to calculation (abacus), manual (slide rule), mechanical (adding machine, difference engine), electric (electronic adding machine), and electronic (calculator and computer).

#MCteach
Author
Publisher
Smithsonian Learning Lab

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