Ordinal numbers indicate order or position within a series.
Spell out ordinal numbers in text, even if the numbers are greater than nine.
Preferred |
Discouraged |
The system truncates the number after the twelfth digit. |
The system truncates the number after the 12th digit. |
Do not add the suffix ly to an ordinal number.
Preferred |
Discouraged |
First, remove the computer from the protective plastic wrapping. |
Firstly, remove the computer from the protective plastic wrapping. |
Do not use ordinal numbers for dates.
Preferred |
Discouraged |
Type numbers for the month and the day of expiration. For example, type 1008 for October 8. |
Type numbers for the month and the day of expiration. For example, type 1008 for October 8th. |
