Here we convert the cardinal number six hundred forty (640) to an
ordinal number. This is useful if you want to use the number 640 as an
adjective when you speak or write it.
There are two ways of writing 640 as an ordinal number, either with letters
and numbers or just letters as follows:
640th
six hundred fortieth
When would you be using the ordinal instead of the cardinal version of 640
you ask?
You use 640 (cardinal) if you are describing how many of something, and you use 640th (ordinal) if you
are describing a position or rank of something.
Like we mentioned above, remember to use the ordinal version of 640 when
640 is used as an adjective.
Convert 641 cardinal to ordinal
Go here for the next number we converted from cardinal to ordinal.
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