The Canadian Style
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- + Abbreviations
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- - Close Numerical Expressions
- Introduction to Numerical Expressions
- Round numbers
- Consistency
- Initial numbers
- Adjectival expressions and juxtaposed numbers
- Mathematical usage
- Ratios
- Fractions
- Decimal fractions
- Quantities and measures
- Money
- Representation of time in ordinary prose and with SI units
- Representation of time of day
- Dates
- Age
- Market quotations
- Votes, scores, etc.
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- Reference numbers
- Plurals
- Comparative and inclusive numbers
- Roman numerals
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5.23 Plurals
Plurals of numerals are usually formed by adding an s:
- the 1960s
- five 55s
- The bonds are 4½ s.
- Korolev scored 9.85s on the floor and pommel horse exercises.
In cases where this might cause misreading, add an apostrophe and s or italicize the numerals:
- Her performance earned her three 5.8’s.
- His 5’s look like 6’s.
- His 5s look like 6s.
Whichever practice is adopted, consistency should be maintained in any one document.
Do not pluralize SI/metric symbols:
- 5 kg not 5 kgs
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