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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5.15 Age
Exact age is usually indicated in numerals, even if less than 10:
- Jane, aged 9, and her brother Tom, 10, led the hike.
It is written out, however, in the case of approximate age and in formal contexts:
- He’s eighty if he’s a day.
- She was no more than seventeen at the time.
- On the occasion of her retirement at the age of sixty-five.
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