A New System Of Mental Arithmetic (1837)
Daniel Harrison
Broschiertes Buch

A New System Of Mental Arithmetic (1837)

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A New System of Mental Arithmetic is a book written by Daniel Harrison and originally published in 1837. The book is designed to teach arithmetic through mental calculation, rather than relying on written calculations. The book is divided into several sections, each focusing on a different aspect of mental arithmetic, such as addition, subtraction, multiplication, and division. The book includes a variety of exercises and examples to help readers develop their mental arithmetic skills. The book is intended for students of all ages, from elementary school to college, and is designed to be used ...