Using an Abacus for Basic Arithmetic
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Questions and Answers

What is the name of the mathematician who developed the manually operated calculating device, Napier's Bones?

  • John Napier (correct)
  • John Newton
  • John Euclid
  • John Kepler

    • What is the purpose of the rods in Napier's Bones?

  • To perform addition and subtraction
  • To find the square root of a number
  • To perform multiplication and division (correct)
  • To store multiplication tables

    • What is the value of a bead when it is brought near the divider in the upper part of the abacus?

  • One
  • Zero
  • Ten
  • Five (correct)

    • What is the purpose of the extra rod in the abacus?

    <p>To represent the unit's place</p> Signup and view all the answers

    How many beads are there in the lower part of the abacus?

    <p>Five</p> Signup and view all the answers

    What is the value of a bead when it is not near the divider in the abacus?

    <p>Zero</p> Signup and view all the answers

    In what year was Napier's Bones designed and developed?

    <p>1617</p> Signup and view all the answers

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