Write the numbers one to nine as words. Write 10+ as numerals, except at the start of a sentence (or, even better, rearrange the sentence).
|The class runs for seven weeks.||The class runs for 7 weeks.|
|The survey had 23 responses from students.||The survey had twenty-three responses from students.|
|Twenty-three students responded to the survey.||23 students responded to the survey.|
Use commas to separate thousands.
|Federation has more than 5,000 students.||Federation has more than 5000 students.|
Use the words ‘per cent’ not the % symbol (% can be used in tables and diagrams to save space).
|More than 83 per cent of students prefer us to contact them by email.||More than 83% of students prefer us to contact them by email.|
Separate spans of numbers, including years and times, with an en-dash.
|4–6 pm||4-6 pm|