Question

Which of the following is still useful for adding numbers?

A

EDSAC

B

ENIAC

C

Abacus

D

UNIVAC

E

None of the above

Medium

Solution

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Correct option is
C

Abacus

Abacus is still useful for adding numbers.

The standard abacus can be used to perform addition, subtraction, division and multiplication; the abacus can also be used to extract square-roots and cubic roots. The beads are manipulated with either the index finger or the thumb of one hand.

Importance of Abacus for Mathematical Development. ... Abacus was designed in such a manner so that the brain visualizes the abacus while performing calculations which automatically activates the right part of our brain especially when we move our fingers over the beads and talk aloud while solving the problems.

Besides enhancing the overall comprehension of maths – other important benefits of abacus maths include the following: Boosts better and faster calculation skills. Increases endurance for stress and pressure. Improves problem-solving abilities.

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