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

1-10 one two three four five six seven eight nine ten

11-20 eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty

21-29 twenty-one twenty-two twenty-three twenty-four….

30-39 thirty thirty-one thirty-two ….

40-49 forty forty-one forty-two forty-three….

50-59 fifty fifty-one fifty-two fifty-three…..

60-69 sixty sixty-one sixty-two sixty-three…..

70-79 seventy seventy-one seventy-two …..

80-89 eighty eighty-one eighty-two eighty-three….

90-99 ninety ninety-one ninety-two ninety-three…

100 one hundred

1～12 没有规律，需特殊记忆英文数字：

one two three four five six seven eight nine ten eleven twelve

13～19是基于3～9在后边加-teen

thirteen fourteen fifteen sixteen seventeen eighteen nineteen

twenty

21～29是20加上1～9的数字

thirty

31～39是30加上1～9的数字

依此类推～

20,30,40,50～这些都是什么什么加-ty

100单独记忆

hundred

一百多的数字前面写个“one hundred and”

“a hundred and”比较口语。

一定要写“and”

例：

1 = one

101 = one hundred and one

31 = thirty-one

131 = one hundred and thirty-one

两百多的数字前面写个“two hundred and”。注意，

不需要复数形式：“two hundreds”←错误

例外：“There are five two hundreds in one thousand.”（在一千个一里面有五个两百。）←在此，“五个两百”不是一个数字，所以有复数。关系是〔two hundred〕s，非two 〔hundred〕s。“two hundred”两个字算一组，一起副数。

没有连字号“two-hundred”←错误

千 ＝ thousand

万 ＝ ten thousand（没复数）

百万 = million