1 one 11 eleven 21 twenty-one
2 two 12 twelve 22 twenty-two
3 three 13 thirteen 23 twenty-three
4 four 14 fourteen 24 twenty-four
5 five 15 fifteen 25 twenty-five
6 six 16 sixteen 26 twenty-six
7 seven 17 seventeen 27 twenty-seven
8 eight 18 eighteen 28 twenty-eight
9 nine 19 nineteen 29 twenty-nine
10 ten 20 twenty 30 thirty
