AP STYLE: Numbers at Start of Sentence
NUMBERS AT THE BEGINNING OF A SENTENCE:
Spell out numbers at the beginning of a sentence, as a general rule:
Fifty years was a long time. Sixteen to 20 geese flew over.
Years exception:
2015 was a very good year for wine.
Numeral and letter combination exception:
501(c)(3) charities are exempt. 4K TVs are not as good as anticipated.
[See addresses and numerals.]
(SCW 6.30.23)
In general, we spell out numbers at the start of a sentence: Fifteen to 20 cars crashed. An exception is years: 1992 was a good year. Another exception: Numeral(s) and letter(s) combinations: 401(k) plans are offered. 4K TVs are on sale. 3D movies are fun.
— APStylebook (@APStylebook) May 9, 2023
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