NUMBERS

CARDINAL AND ORDINAL NUMBERS
What is the difference?

CARDINAL AND ORDINAL NUMBERS
Cardinal numbers are used in counting and answer the question “how many?”
245
7,068
5,673,000
143,564,729
6%
Cardinal numbers are used to designate apartment, houses, buses, pages, chapters and routes.
They live in 27 Oxford street, Apartment 5.
I go to school on bus 44.

CARDINAL AND ORDINAL NUMBERS
Ordinal numbers are used in indicating order and answer the question “which?”
1,2,3…
11,12,13…
Remember the use of definite articles

FRACTIONS
How do we read fractions?

FRACTIONS
How would you read…
¼
2/3
5/8
5 ¾
27 ½

USE OF COMMAS IN NUMBERS
Commas are used when we want to express the quantity of something:
3,348 people attended the seminar last week.
Each year the city is responsible for over 90,000 tons of waste.
There are over 1,200 different species of bats in the world.
Commas are not used in numbers which identify something:
Don lived at 18325 Magnolia Street.
Please quote reference 6812-4478

USE OF A DOT OR DECIMAL POINTS
In English we use dots or full stops in decimals to signify something below the denomination of 1.
0.6
0.25%
1.95
$1.99
0.128
0.0007

HYPHEN -
A hyphen (-) is used when we spell numbers from 21 to 99 out in words.
Twenty-one
Ninety-nine
It is also used when we spell fractions out in words.
Two-thirds
One-half
Three-quarters

TELEPHONE NUMBERS
We use cardinal numbers
[phone]
1-800-528-4800
911 (US), 999 (UK), 000 (AUS)