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Uploaded by sks23cu on Aug 3, 2009
Counting Board Abacus: 03 Multiplication - Entire set at http://bit.ly/CBvideos.
Education
Standard YouTube License
Instead of halving/doubling, simply replace multiplier pebble(s) on space with five on line below.
sks23cu 1 year ago
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Instead of halving/doubling, simply replace multiplier pebble(s) on space with five on line below.
sks23cu 1 year ago