Question

name any two devices which. the early man use to count with​

Answer 1

Answer:

There are different types of abacus counting device including the Chinese abacus called Suanpan, invented in the 6th century, the Roman abacus, named as Calculi or Abaculi, and the Japanese abacus, called Soroban. Soroban was used in the 16th and 17th century.

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Answer 2

Answer:

Chinese abacus called suanpan and roman abacus called calculi or abaculi

Explanation:

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