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| Use concrete objects and visual models to add and subtract common fractions.
 
| Use concrete objects and visual models to add and subtract common fractions.
 
| None
 
| None
| [[Activities/Abacus|Abacus]] (Caacupé abacus)
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| [[Activities/Abacus|Abacus]] (Caacupé abacus) [[Activities/Abacus/Worksheet |Worksheet]]
 
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|}
  
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