Names for ordinal numbers facts for kids
Here are some words for small ordinal numbers. Words in bold are irregular.



When writing other numbers between 21 and 99, only use the cardinal form of the last number. Also, you must use a hyphen ().
 21: twentyfirst
 64: sixtyfourth
 99: ninetyninth
The ordinal number 100 is written as "one hundredth", but sometimes people say "the hundredth".
To write a number from 100 to 999:
 First write how many hundreds.
 If nothing is left over, write the word "hundredth".
 If anything is left over, write the word "hundred", then write whatever is left over. Some times people use "and" to show the left overs.
Examples:
 101: one hundred first
 102: one hundred second (or one hundred and second)
 175: one hundred seventyfifth
 200: two hundredth
 300: three hundredth
 512: five hundred twelfth
 987: nine hundred eightyseventh
You can also write ordinal numbers by writing the number, then the ending (st, nd, rd, or th) from above.
 1st
 2nd
 3rd
 4th
 15th
 63rd
 80th
 987th
 2001st
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Names for ordinal numbers Facts for Kids. Kiddle Encyclopedia.