Cardinal, Ordinal, and Nominal Numbers

Updated February 11, 2017 | Infoplease Staff

Cardinal numbers, known as the ?counting numbers,? indicate quantity. Ordinal numbers indicate the order or rank of things in a set (e.g., sixth in line; fourth place). Nominal numbers name or identify something (e.g., a zip code or a player on a team.) They do not show quantity or rank.

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