Ordinal numbers from 16th to 31st.

Ordinal Numbers:

• 16th - sixteenth
• 17th - seventeenth
• 18th - eighteenth
• 19th - nineteenth
• 20th - twentieth
• 21st - twenty-first
• 22nd - twenty-second
• 23rd - twenty-third
• 24th - twenty-fourth
• 25th - twenty-fifth
• 26th - twenty-sixth
• 27th - twenty-seventh
• 28th - twenty-eighth
• 29th - twenty-ninth
• 30th - thirtieth
• 31st - thirty-first