Cardinal and ordinal numbers, percentages

The Quantifiers: talking about numbers in English

CARDINAL and ORDINAL NUMBERS

The cardinal numbers (one, two, three, etc.) are adjectives referring to quantity, and the ordinal numbers (first, second, third, etc.) refer to distribution.

Number Cardinal Ordinal

1

one

first

2

two

second

3

three

third

4

four

fourth

5

five

fifth

6

six

sixth

7

seven

seventh

8

eight

eighth

9

nine

ninth

10

ten

tenth

11

eleven

eleventh

12

twelve

twelfth

13

thirteen

thirteenth

14

fourteen

fourteenth

15

fifteen

fifteenth

16

sixteen

sixteenth

17

seventeen

seventeenth

18

eighteen

eighteenth

19

nineteen

nineteenth

20

twenty

twentieth

21

twenty-one

twenty-first

22

twenty-two

twenty-second

23

twenty-three

twenty-third

24

twenty-four

twenty-fourth

25

twenty-five

twenty-fifth

26

twenty-six

twenty-sixth

27

twenty-seven

twenty-seventh

28

twenty-eight

twenty-eighth

29

twenty-nine

twenty-ninth

30

thirty

thirtieth

31

thirty-one

thirty-first

40

forty

fortieth

50

fifty

fiftieth

60

sixty

sixtieth

70

seventy

seventieth

80

eighty

eightieth

90

ninety

ninetieth

100

one hundred

hundredth

500

five hundred

five hundredth

1,000

one thousand

thousandth

100,000

one hundred thousand

hundred thousandth

1,000,000 one million millionth

Examples

  • There are twenty-five people in the room.
  • He was the fourteenth person to win the award since 1934.
  • Six hundred thousand people were left homeless after the earthquake.
  • I must have asked you twenty times to be quiet.
  • He went to Israel for the third time this year.

Fractions and decimals

Said Written Said

half

0.5

point five

a quarter

0.25

point two five

three quarters

0.75

point seven five

Percentages

Written Said

25%

twenty five percent

50%

fifty percent

75%

seventy five percent

100%

a/one hundred percent

Units

Written Said

$1,200

one thousand two hundred dollars

£16,486

sixteen thousand four hundred and eighty-six pounds

545kms

five hundred and forty-five kilometres

$25.35

twenty-five dollars thirty-five

Years

Written Said

1988

Nineteen eighty-eight

1864

Eighteen sixty-four

1999

Nineteen ninety-nine

How to say '0'

nought

used in mathematical expressions and decimals:
'nought times three equals nought'
0.3 = 'nought point three' (or 'point three')
0.03 = 'point nought three'

zero

used in scientific expressions, especially temperatures:
20oC = minus twenty degrees or
twenty degrees below zero

also used to mean 'the lowest point':
'The heavy rain reduced visibility to zero'

'o' (the letter)

used in telephone numbers:
0171 390 0062 = 'o one seven one three nine o double o six two'

nil/nothing

used to express the score in games such as football:
2 - 0 = 'two nil' or 'two nothing'