what are called butterfly numbers in abacus
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Decimal number are called butterfly number in abacus
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ANSWER:
Decimal numbers are called butterfly numbers in abacus.
EXPLANATION:
The abacus was a tool that was used by people of the earlier days in Europe, China and Russia. It was used by people to make the process of counting easier, before the introduction of the Hindu – Arabic Numeral System.
It is also called counting – frame and its origin is still not known. It is made using bamboo on which there are strings containing some beads.
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