‘1st’ or ‘1th’: Which is Correct? - Writing Tips Institute Here is the short answer, in case you are in a rush: '1st' is the correct numeric abbreviation of the ordinal first '1th' is a grammatical error, and it should never be used The brief overview will help you if you need to quickly decide which spelling to use, but there is more to learn
1st or 1th – Which is Correct? - Two Minute English In summary, “1st” is correct, and “1th” is an error—but don’t let that scare you! English can seem complicated with its rules and exceptions, but with regular practice and a good attitude, you’ll get the hang of it
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