Spelling Out Numbers - AMA Manual of Style

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Spelling Out Numbers 

Spelling Out Numbers

Chapter:
Numbers and Percentages
Author(s):

Stephen J. Lurie

and Margaret A. Winker

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Subscriber: null; date: 28 August 2016

Spelling Out Numbers

Use words to express numbers that occur at the beginning of a sentence, title, subtitle, or heading; for common fractions; for accepted usage and numbers used as pronouns; for ordinals first through ninth; and when part of a published quote or title in which the number is spelled out. When spelling out numerals, hyphenate twenty-one through ninety-nine when these numbers occur alone or as part of a larger number. When numbers greater than 100 are spelled out, do not use commas or and (eg, one hundred thirty-two).

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