This file describes how one uses a Chinese abacus to add two numbers, 32 and 9 in this example.  It was created by me, using <a href="//commons.wikimedia.org/wiki/File:Abacus_6.png" title="File:Abacus 6.png">Image:Abacus_6.png</a> as the base.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Vadakkan" title="User:Vadakkan">Vadakkan</a> assumed (based on copyright claims).
16 July 2006 (original upload date)
No machine-readable source provided. Own work assumed (based on copyright claims).