Problem 136. Read a Soroban Abacus
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the cyclist
on 28 Jan 2012
Unlike the picture, there are no decimals. The rightmost column is the unit column.
SSOI SS
on 15 Jun 2012
Hi, the abacus is Chinese invention, not japanese !!!
@bmtran (Bryant Tran)
on 16 Jun 2012
i never made any claim to who invented the abacus. i'm just clarifying that this problem pertains to the japanese soroban, which is specifically designed for base-10 arithmetic.
David Verrelli
on 23 Apr 2018
Link provided to webhome.idirect.com appears to be down. Here is another link:
http://www.alcula.com/soroban.php
Asif Newaz
on 12 Jan 2020
nic problem
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