1 one
2 two
3 three
4 four
5 five
6 six
7 seven
8 eight
9 nine
10 ten
eleven 11
twelve 12
3-9 加后缀 -teen 构成
thirteen 13
fourteen 14
fifteen 15
sixteen 16
eventeen 17
eighteen 18
nineteen 19
注意:thirteen fifteen eighteen
2-9 加后缀 -ty 构成
twenty 20
thirty 30
forty 40
fifty 50
sixty 60
seventy 70
eighty 80
ninety 90
注意:twenty, thirty, forty, fifty, eighty