The role of number notation: Sign-value notation number processing is easier than place-value

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Abstract

Number notations can influence the way numbers are handled in computations; however, the role of notation itself in mental processing has not been examined directly. From a mathematical point of view, it is believed that place-value number notation systems, such as the Indo-Arabic numbers, are superior to sign-value systems, such as the Roman numbers. However, sign-value notation might have sufficient efficiency; for example, sign-value notations were common in flourishing cultures, such as in ancient Egypt. Herein we compared artificial sign-value and place-value notations in simple numerical tasks. We found that, contrary to the dominant view, sign-value notation can be applied more easily than place-value notation for multi-power comparison and addition tasks. Our results are consistent with the popularity of sign-value notations that prevailed for centuries. To explain the notation effect, we propose a natural multi-power number representation based on the numerical representation of objects. © 2012 KrajcsiandSzabó.

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Krajcsi, A., & Szabó, E. (2012). The role of number notation: Sign-value notation number processing is easier than place-value. Frontiers in Psychology, 3(OCT). https://doi.org/10.3389/fpsyg.2012.00463

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