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The MCQ: In which one of the following year mechanical calculators were invented; "Calculators" App Download (Free) with answers: 1656; 1665; 1642; 1675; for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Google eBook (Free Sample) for school certificate.
Calculators MCQs PDF: Questions Answers Download
The first mechanical calculator was invented by
- Sir Robert Noyce
- Sir Blaise Pascal
- Dr Raymond Lemieux
- Sir Thomas Edison
In which one of the following year mechanical calculators were invented?
- 1656
- 1665
- 1642
- 1675
In which country the first mechanical calculator was invented?
- U.S.A
- Canada
- Italy
- China
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