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: