英语单词：
1-12：one two three four five six seven eight nine ten eleven twelve；
13-19末尾以teen结尾，比如19 nineteen；
20-99可用“十位-个位”的方法读数，比如21 twenty-one；
100的英文hundred。
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
31 thirty- one 32 thirty- two 33 thirty- three 34 thirty- four 35 thirty- five
复数形式
有时两个复数形式的基数词连用可写为： hundreds of thousands of , tens of hundreds of 等等。
They went to the theatre in twos and threes． 他们三三两两地来到了剧院。
表示人的不确切岁数或年代，用几十的复数形式表示。
He became a professor in his thirties． 他三十多岁时成为了教授。
She died of lung cancer in forties． 她四十来岁时死于肺癌。