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Instant Math: Das Trachtenberg-Geschwindigkeitssystem der grundlegenden Mathematik

12,29 €

"Instant Math: The Trachtenberg Speed System of Basic Mathematics" by Ann Cutler is a vintage book published in 1962 by Doubleday. The book presents a system for quickly mastering basic math concepts known as the Trachtenberg Speed System. With 60 pages, this book is a valuable resource for anyone looking to improve their math skills in a short amount of time. It is written in English and provides a unique approach to learning mathematics, making it a valuable addition to any book collection focusing on the topic."

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