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Do You Write or Type Numeral Ten in APA?

Updated March 07, 2017

Number

Typically, the number 10 and larger numbers are expressed by using numerals in APA format. This includes situations where you use 10 in measurements, such as a "10-mg dosage of medication," dates like "October 10," times like "10 a.m." and in sentences that use numbers in comparison such as "9 out of 10 dentists recommend it." When writing percentages and money references, use the numeral with the percent or dollar sign. The same rule applies when using 10 as an ordinal number: "10th graders take part."

Exceptions

In some instances, you should spell out the number 10 in APA style. Sentences must start with words rather than numbers, so you'd start a sentence with "Ten." You may need to spell the number out to avoid confusing your reader if you use multiple numbers in a phrase, such as "ten 8-point summaries." Spell out the number when giving an approximation of time rather than a specific amount. For example, you would write, "about ten days earlier." Another exception involves phrases where the number is commonly written out, such as "The Ten Commandments."

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About the Author

Kristie Sweet has been writing professionally since 1982, most recently publishing for various websites on topics like health and wellness, and education. She holds a Master of Arts in English from the University of Northern Colorado.