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Numerals

Grammar - Numerals

The cardinal numbers (one, two, three, four…) are used to refer to quantity and the ordinal numbers (first, second, third, fourth…) are used to describe an order type.

CARDINAL NUMBERS AND ORDINAL NUMBERS

1one1st – first
2two2nd – second
3three3rd – third
4four4th – fourth
5five5th – fifth
6six6th – sixth
7seven7th – seventh
8eight8th – eighth
9nine9th – ninth
10ten10th – tenth
11eleven11th – eleventh
12twelve12th – twelfth
13thirteen13th – thirteenth
14fourteen14th – fourteenth
15fifteen15th – fifteenth
16sixteen16th – sixteenth
17seventeen17th – seventeenth
18eighteen18th – eighteenth
19nineteen19th – nineteenth
20twenty20 – twentieth
21twenty-one21st – twenty-first
22twenty-two22nd – twenty-second
23twenty-three23rd – twenty-third
24twenty-four24th – twenty-fourth
25twenty-five25th – twenty-fifth
26twenty-six26th – twenty-sixth
27twenty-seven27th – twenty-seventh
28twenty-eight28th – twenty-eighth
29twenty-nine29th – twenty-ninth
30thirty30th – thirtieth
31thirty-one31st – thirty-first
40forty40th – fortieth
50fifty50th – fiftieth
60sixty60th – sixtieth
70seventy70th – seventieth
80eighty80th – eightieth
90ninety90th – ninetieth
100one hundred100th – hundredth
500five hundred500th – five hundredth
1.000one thousand1.000th – one thousandth
1.500one thousand five hundred, or fifteen hundred1.500th – one thousand five hundredth
100.000one hundred thousand100.00th – one hundred thousandth
1.000.000one million1.000.000th – one millionth

ZERO / O / NIL / NOUGHT

Use the word zero when reading decimals, percentages, phone numbers and some expressions.

Letter ‘o’ is used to read years, times or addresses.

Nil is used to refer to sports scores

Nought is old-fashioned English and it’s rarely used. Some teachers use it to teach math.

zeroUsed to read the number by itself, in reading decimals, percentages, and phone numbers, and in some fixed expressions.
o (the letter name)Used to read years, addresses, times and temperatures
nilUsed to report sports scores
noughtNot used in the USA

DECIMALS

0.6point six
0.25point two five
0.74point seven four
0.08point zero eight
0.9529point nine five two nine
1.95one point nine five

FRACTIONS

1/2one half
1/3one third
2/3two-thirds
1/4one quarter
15 1/4fifteen and one quarter

MEASUREMENTS

20mtwenty meters
30km/hthirty kilometers per hour
10ftten feet
5Lfive liters
5tbspfive tablespoons
1tspone teaspoon

PERCENTAGES

9%nine percent
28%twenty-eight percent
47.25%forty-seven point two five percent
100%one hundred percent
500%five hundred percent

YEARS

2017

2006

2000

1905

1900

860

2000BC

twenty seventeen or two thousand seventeen

two thousand six

two thousand

nineteen o eight

nineteen hundren

eight hundred sixty or eight sixty

two thousand BC