Difference between revisions of "Ordinal number"
(Created page with "An '''ordinal number''' is a number that is used to describe a set of objects in order, as in a list. In English, the ordinal numbers are: first, second, third,...")
Revision as of 14:19, 4 December 2019
In English, the ordinal numbers are:
first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth, twenty-first, twenty-second, twenty-third, etc.
These are usually first encountered by students with regard to dates, for which they will need ordinal numbers up to thirty-first.
Regular ordinal numbers end in -th; irregular ordinal numbers are the first, second, third. Students may over-regularise these and say e.g. *"oneth", *"twoth", *"threeth", possibly with a 10x number as well, e.g. *"twenty-twoth".
These can be used as pronouns, e.g. "the first", etc.
Students often struggle with the /θ/ sound.