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jan 1, 1993 - А.Н. Барсуков

Description:

«Исторический элемент в курсе математики V - VII классов»- 1956 год. Журнал «Математика в школе».

Added to timeline:

5 этап конкурса.

ByЕлизавета Волкова

16 Feb 2023

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Date:

jan 1, 1993

Now

~ 33 years ago

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