Why the 29 part uses a hyphen
Compound numbers from 21 through 99 join the tens word and the ones word with a hyphen. In 29, the 29 part combines twenty and nine, producing twenty-nine.
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29 in words is twenty-nine.
29 = 2 tens + 9 ones
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Write 29 in words:
| Style | Words |
|---|---|
| American English | twenty-nine |
| British English | twenty-nine |
Compound numbers from 21 through 99 join the tens word and the ones word with a hyphen. In 29, the 29 part combines twenty and nine, producing twenty-nine.