Numbers for intermediate learners
If math describes how the world works, numbers are the alphabet that makes math possible. In this lesson, we will discover all about them.
What are Numbers?
Numbers are symbols or words that represent quantities or values of things. Numbers are used for counting, measuring, and comparing things. We have two kinds of numbers in English: Cardinal Numbers and Ordinal Numbers.
Cardinal Numbers
Generally, when we want to count people, items, etc. we use cardinal numbers. Check out the following examples:
I have
Sarah can afford to buy
Tip!
Usually, these cardinal numbers come before nouns.
Numbers Bigger Than Twenty
All numbers between twenty and one hundred are hyphenated. Take a look at the following examples:
There are
He wants to add
Numbers Bigger Than One Hundred
When we want to state numbers above one hundred, we must use a hyphen between the words that come after 'and'. Look at the examples below:
There are one hundred and
My room number is one hundred and
Tip!
We can read 100 with both 'a' and 'one. Take a look:
A hundred = One Hundred
Ordinal Numbers
Just as their name suggests, ordinal numbers refer to the order of items, people, etc. in a list. Check out the following examples:
The
He's your
Take a look at the following table to see how they are formed:
First | Nineth |
Second | Tenth |
Third | Twentieth |
Fourth | Thirtieth |
Fifth | Forty-first |
Sixth | Fifty-second |
Seventh | Sixty-third |
Eighth | Seventy-fourth |
Warning!
Please note that from 'fourth' onward, all numbers get a 'th' at the end.
Uses
We use these Ordinal numbers in different contexts. Some of them are below:
- To Talk About Centuries
- To Show Dates
- To Indicate Roman numbers
Now, take a look at some examples below:
Edward the
My birthday is on August the
In the