Our dearest arithmetician and multiple record breaker is back: Gert Mittring once more presents Stefan mathematical tricks from his two books: "Calculating with the world champion: mathematics and memory training for everyday life" and "Fit in the head with the computing world champion Dr. Mittring" ,
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Негізгі бет Ойын-сауық Math-Action with Dr. Dr. Gert Mittring - TV total
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