Problem 136. Read a Soroban Abacus
54.47% Correct | 45.53% Incorrect
Last Solution submitted on Mar 02, 2023
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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:
Asif Newaz on 12 Jan 2020
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