The correct term is "thirtieth" when referring to the ordinal number that comes after the twenty-ninth. It is used in contexts such as dates (e.g., "the thirtieth of the month") or to describe a position in a sequence. "30th" is simply a numerical representation of "thirtieth."
The correct spelling for 30th is "thirtieth".
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Yes it is the games of the 30th Olympic
The ordinal number 30th is spelled thirtieth.
The thirtieth century will fall between the years 2901 and 3000 AD.
The spelling "thirtieth story" is the correct written form of "30th story" (of a building).*The UK term for a building level is spelled storey.
The 30th dynasty 380-343BC the last native rulers of Egypt until 1922.
Wisconsin was admitted into the Union on May 29, 1848 becoming the 30th state to join the Union.
The ordinal number 30th is spelled thirtieth.
It would help to suit it around their personality. If they have SOHF don't tease them. If they don't be a bit jokey 30th is difficult.