Ordinals

Point 1: Ordinals are numbers that show the order things appear or occur.

1. first
2. second
3. third
4. fourth
5. fifth
6. sixth
7. seventh
8. eight
9. ninth
10. tenth

Point 2: Most ordinals are just the number + th.

1. 20th | twentieth
2. 30th | thirtieth
3. 40th | fortieth
4. 50th | fiftieth

Point 3: The numbers 1 - 3 have special ordinals.

1. 1 | first
2. 2 | second
3. 3 | third
4. 21 | twenty-first
5. 33 | thirty-third
6. 82 | eighty-second

Point 4: The numbers 11 and 12 have special spellings that do not follow the normal rule.

1. 11 | eleventh
2. 12 | twelfth
3. 111 | one hundred and eleventh
4. 512 | five hundred and twelfth

Point 5: Numbers that end in -y change to -ieth.

1. 20th | twentieth
2. 30th | thirtieth
3. 40th | fortieth
4. 50th | fiftieth