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Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 241

Calculators Trivia (Question 241) – App & e-Book Download

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MCQ 241: The first mechanical calculator was invented by:

  1. Sir Robert Noyce
  2. Sir Blaise Pascal
  3. Dr Raymond Lemieux
  4. Sir Thomas Edison

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