File:Abacus-Fractions.png
Revision as of 13:59, 18 April 2011 by Claudia Urrea (talk | contribs) (Uses Abacus to explore mathematical operations with fractions.)
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Uses Abacus to explore mathematical operations with fractions.
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current | 13:59, 18 April 2011 | 1,200 × 900 (66 KB) | Claudia Urrea (talk | contribs) | Uses Abacus to explore mathematical operations with fractions. |
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