• Cardinal numbers

Spell out cardinal numbers from zero to nine and use numerals from 10 upwards, but maintain consistency in the immediate context.

Small_OK Every three sessions, the students will be organised in new groups of five.
Small_OK The Board will be reviewing a total of 10 new master’s degrees and 12 new doctoral degrees.
Small_OK The presentations should last between five and ten minutes.
  • Ordinal numbers

Spell out ordinal numbers from zero to nine and use numerals from 10 upwards, but maintain consistency in the immediate context. Avoid superscript type.

Small_OK The Second International Conference on Fluid Dynamics was held in Vic.
Small_OK The oldest European university was founded in the 12th century.
Small_OK In this year’s ranking table, the research groups Pattern Analysis and Sonar Imaging occupied third and eleventh position, respectively.
  • Roman numerals

Use Roman numerals for course names.

Small_OK Mathematics II
  • Fractions

Spell out simple fractions and hyphenate them.

Small_OK Two-thirds of the students were in agreement.
Small_OK The lecturer has covered three-quarters of the course so far.
  • Numbers at the beginning of a sentence

Spell out numbers (including years) at the beginning of a sentence, although it is better to rewrite the sentence so that it does not start with a numeral.

Small_OK Nineteen forty-five was the year the UN was founded.
Small_OK The UN was founded in 1945.
  • Plural numbers

Add an s to form the plural of a numeral. Do not add an apostrophe.

Small_OK Among the scores were four 94s and two 99s.

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