A1 - Cardinal Numbers

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

30 thirty

31 thirty-one

40 forty

50 fifty

60 sixty

70 seventy

80 eighty

90 ninety

100 one hundred

101 a hundred and one

1000 one thousand

2000 two thousand

1 000 000 one million