Abstract
THE object of this note is to explain a process of simplifying multiplication. To most people multiplication by 2, 3, 4, 5 is sufficiently easy (and not worth incurring any trouble to make easier); where as multiplication by 6, 7, 8, 9 is decidedly more difficult, so is sometimes worth while simplifying.
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CUNNINGHAM, A. Simplified Multiplication. Nature 48, 316 (1893). https://doi.org/10.1038/048316a0
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DOI: https://doi.org/10.1038/048316a0
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