- Spell out whole numbers below 10; use figures for 10 and above.
ie. They had three sons and two daughters
ie. They had a fleet of 10 station wagons and two buses.
- Spell out first through ninth when they indicate sequence in time or location: first base, the First Amendment, he was first in line. Starting with 10th use figures.
- Spell out a numeral at the beginning of a sentence. If necessary, recast the sentence.
There is one exception – a numeral that identifies a calendar year.
993 freshmen entered Southeast last year.
Last year, 993 freshmen entered Southeast.
1976 was a very good year.
- With proper names, use words or numerals according to an organization’s practice:
3M, Twentieth Century Fund, Big Ten.