The following are true of ordinal numbers:
- An ordinal number represents the position of people or things placed in an ordered sequence.
- An ordinal number is a whole number that identifies the position of a number or an object in an ordered set or list.
- For numbers greater than two, ordinal numbers are used to name the denominators of fractions.
9 is a cardinal number.
is a rational number.
TEKS: This term is not explicitly covered in the Mathematics TEKS.