Abstract
This is really repeated addition, and if we wanted to multiply some number by 17, we could write it down 17 times, in a vertical column, and add the numbers. This method would be tiresome in ordinary arithmetic, but it is the principle used by mechanical calculating machines.
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© 1977 Harold Ward
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Ward, H. (1977). Multiplication and Division. In: Business Arithmetic. Palgrave, London. https://doi.org/10.1007/978-1-349-03028-6_2
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DOI: https://doi.org/10.1007/978-1-349-03028-6_2
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-19790-5
Online ISBN: 978-1-349-03028-6
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