Quick Answer: Who Made The First Abacus?

How old is the abacus?

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Who is the father of Abacus?

What is the full name of Abacus?

What replaced the abacus?

What is the cost of Abacus?

Is Abacus still used today?

Who invented zero?

Who invented maths?

When and who invented the abacus?

Which type of Abacus is best?

How do you spell abacus?

Who invented Abacus in India?

What is Chinese abacus called?