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FURQAN
4F
SCARSDALE INTERNATIONAL
SCHOOOL
 In the past they used fingers to count how
many animal they have killed.
 The abacus is the calculating machine that was
invented by a Chinese about 5000 years ago.
 Napier bones is the 2ND calculating machine it
was invented by John Napier to do
multiplications.
 The tabulating machine was invented to count
the popullation in AMERICA.
 .

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