Second-second second

Third-third and third

Fourth-fourth and fourth

Five-fifth and fifth

Sixth-sixth and sixth

Seven-seventh and seventh

Eight-eight

Nine-nine nine

Ten-the tenth 10

Eleven-the eleventh 1 1

Twelfth —— Twelfth 12

Extended data:

Memory formula

The basic order changes regularly, and "th" is added at the end of the word.

One, two, three (first, two, three) special precautions;

From 4 to th; 5 change ve to f (fifth), 8 to t (eighth) and 9 to e (ninth);

Several ten tail changed from ty to tie, followed by th (20th);

Dozens, the head remains the same, the tail changes, remember to add a twenty-fourth); In the middle;

Twenty-first, when you meet something special.

References:

Baidu encyclopedia-ordinal number