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Other

Description:

Beads only count when at the center. Those at the bottom are worth one unit and those at the top are worth five units. From right to left, the columns represent ones, tens, hundreds, thousands, and ten thousands.

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      Keywords:

      EUN,LOM,LRE4,work-cmr-id:398235,http://demonstrations.wolfram.com:http://demonstrations.wolfram.com/VirtualAbacus/,ilox,learning resource exchange,LRE metadata application profile,LRE

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      Creative Commons Attribution 3.0

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