Ordinal numbers or ‘numbers’ are used for stating the quantity of something as well as counting. When we need to know “how many” we count. Numbers can be written with letters or in number form. It’s important to memorize some numbers like those in your address or your phone number.
Let’s take a look at the number box below.
| Number | Word | Number | Word | Number | Word | Number | Word |
| 1 | One | 11 | Eleven | 21 | Twenty-one | 40 | Forty |
| 2 | Two | 12 | Twelve | 22 | Twenty-two | 50 | Fifty |
| 3 | Three | 13 | Thirteen | 23 | Twenty-three | 60 | Sixty |
| 4 | Four | 14 | Fourteen | 24 | Twenty-four | 70 | Seventy |
| 5 | Five | 15 | Fifteen | 25 | Twenty-five | 80 | Eighty |
| 6 | Six | 16 | Sixteen | 26 | Twenty-six | 90 | Ninety |
| 7 | Seven | 17 | Seventeen | 27 | Twenty-seven | 100 | One hundred |
| 8 | Eight | 18 | Eighteen | 28 | Twenty-eight | 1000 | One thousand |
| 9 | Nine | 19 | Nineteen | 29 | Twenty-nine | 10,000 | Ten thousand |
| 10 | Ten | 20 | Twenty | 30 | Thirty | 100,000 | One hundred thousand |
| 1,000,000 | One million |
For numbers that are higher than or more than one hundred, there are two ways to write the number - with ‘and’ and without ‘and’. Both forms are acceptable.
For example:
225 can be written ‘Two hundred and twenty-five’ or ' Two hundred twenty-five’.
Some whole numbers between 1000 and 10,000 can also be written in two ways:
1100 - Eleven hundred or One thousand one hundred
1200 - Twelve hundred or One thousand two hundred
1300 - Thirteen hundred or One thousand three hundred
1400 - Fourteen hundred or One thousand four hundred
1500 - Fifteen hundred or One thousand five hundred
1600 - Sixteen hundred or One thousand six hundred
1700 - Seventeen hundred or One thousand seven hundred
1800 - Eighteen hundred or One thousand eight hundred
1900 - Nineteen hundred or One thousand nine hundred
2000 - Two thousand NOT twenty hundred
2100 - Twenty-one hundred or Two thousand one hundred
3200 - Thirty-two hundred or Three thousand two hundred
4300 - Forty-three hundred or Four thousand three hundred
etc…
Numbers such as 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000 are NOT usually written as ‘the number + hundred’.
.
In English, we use commas to separate numbers after 10,000.
For example:
10,000 - 25,000 - 50,000 - 100,000 - 525,000 - 1,000,000 - 2,575,500 - 25,000,00
Practice:
Numbers Practice with Listening - user:l_miguez/Numbers_listening_easy
Number Review with How Many - user:l_miguez/Number_activity_1_easy
More Listening Practice - user:l_miguez/Numbers_picture_listening
Game - user:l_miguez/Number_game