Learn here how to count from 21 to 32. If you know, for example, 60, you can also count from 60 to 69 because it all works the same up to 100 (for example, 67 is "sixty-seven")

twenty-one
twenty-two
twenty-three
twenty-four
twenty-five
twenty-six
twenty-seven
twenty-eight
twenty-nine
thirty
thirty one
thirty two