Ordinals - 100th 101st 1 002nd

[Lecword]

Hello everybody

I have some doubts about ordinal numbers:

- How can I write out and read "100th", "101st" and "1,002nd"?
(A/one) hundredth / (a/one) hundred and first / (one/a) thousand and second ???

Do I need the article? When should I use "a" and when "one"?


- Letters (st/nd/rd/th) should always be superscript?

100th
100[SUP]th ??[/SUP]

Thank you for your help

 

[Raymott]

one hundredth; one hundred and first; one thousand and second.
You use whatever article is appropriate. Some people might leave out 'one', but the selection of an article is different.
"That's the one thousand and second post you've made". "You have a hundred and one lambs. Here comes your hundred and second."
No, they don't have to be superscripted.