1 - one 2 - two 3 - three 4 - four 5 - five 6 - six 7 - seven 8 - eight 9 - nine 10 - ten 11 - eleven 12 - twelve 13 - thirteen 14 - fourteen 15 - fifteen 16 - sixteen 17 - seventeen 18 - eighteen 19 - nineteen 20 - twenty 21 - twenty-one 22 - twenty-two 23 - twenty-three 24 - twenty-four 25 - twenty-five 26 - twenty-six 27 - twenty-seven 28 - twenty-eight 29 - twenty-nine 30 - thirty 40 - forty 50 - fifty 60 - sixty 70 - seventy 80 - eighty 90 - ninety 100 - one hundred 31等等的就像21,22那样的在后面加上-数字就行了。