Activities/Abacus: Difference between revisions
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* hexadecimal button (hexadecimal abacus) | * hexadecimal button (hexadecimal abacus) | ||
* fraction button (fraction abacus) | * fraction button (fraction abacus) | ||
* Caacupe button (fraction abacus with +/–) | |||
* Rod button (Cuisenaire-like abacus) | |||
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|[[Image:Abacus-custom-toolbar.png|left]] | |[[Image:Abacus-custom-toolbar.png|left]] | ||