How to write numbers in full


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When writing numbers in full, hyphenate all numbers between 21 and 99 (less those divisible by 10).

Hyphens in Numbers

Regardless of where they appear within the whole number, all numbers between 21 and 99 (except 30, 40, 50, 60, 70, 80 and 90) should be hyphenated. (There is no need to use commas.)

Examples:

51 (fifty-one

)

234 (two hundred and thirty-four

)

3,567 (three thousand five hundred and sixty-seven

)
(note: no comma in the full version)

44,120 (forty-four thousand one hundred and twenty

)

25,223 (twenty five thousand two hundred and twenty three

)
("twenty five" and "twenty three" should be hyphenated.)

5,223 (five thousand, two hundred and twenty-three

)
(comma not required)

23,237,897 (twenty-three million two hundred and thirty-seven thousand eight
hundred and ninety-seven

)

grammar errors

FORTY NOT FOURTY

The number 40 is spelt forty and not fourty.

See also:

Hyphens in compound adjectives
Numbers as compound adjectives
Starting sentences with numbers

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