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Khushi Nalawade from Podar International School, Hiranandani Powai, Mumbai

Subject :NCO Class : Class 3

What is Abacus

Ans 1:

PRINCE from DON BOSCO ACADEMY , PATNA

Class : Class 7

It is one of the ancient calculators used in ancient China

Khushi Nalawade from Podar International School, Hiranandani Powai, Mumbai

Class : Class 7

Abacus is the first calculating device.