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Author Topic: Ïàðà èíòåðåñíûõ ñïîñîáà óìíîæåíèÿ  (Read 1252 times)

Regilad

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Ïàðà èíòåðåñíûõ ñïîñîáà óìíîæåíèÿ
« on: December 11, 2006, 06:08:22 pm »
Ñîáñòâåííî, âñå êîãäà–òî ó÷èëèñü â øêîëå... Íî ñîâåðøåííî òî÷íî â øêîëå íå  ïðåïîäàâàëè òàêèõ è âîò òàêèõ (âòîðîé âàðèàíò) çàáàâíûõ ñïîñîáîâ óìíîæåíèÿ.
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