Unit 8.1

# Cardinal numbers: Hundreds

## Introduction

**Cardinal numbers **give information about how many people or things there are.

**Hundred numbers** go from 100 to 999.

## Form

The **hundred** numbers have **one hundred as its base**.

They have some specific features:

- plain form:
**number + 00** - their name is: how the
**number**in the beginning is called**+ hundred** - 100 can be called ‘
**one**hundred’ or ‘**a**hundred’ - if there are more numbers after the hundred number, they need to be mentioned as normal (ten number). Sometimes, we use ‘and’ in between the hundred number and the ten number.
- they go from 100 to 999

Hundreds from 100 to 900 |
Hundreds + Unities |
Hundreds + Tens |

one hundred | one hundred and one | one hundred and ten |

two hundred | one hundred and two | one hundred and twenty |

three hundred | one hundred and three | one hundred and thirty |

four hundred | one hundred and four | one hundred and forty |

five hundred | one hundred and five | one hundred and fifty |

six hundred | one hundred and six | one hundred and sixty |

seven hundred | one hundred and seven | one hundred and seventy |

eight hundred | one hundred and eight | one hundred and eighty |

nine hundred | one hundred and nine | one hundred and ninety |

NOTE: We normally use the **singular form** of the numbers when we are naming a concrete figure, while we use the **plural form** when we are not speaking about a concrete number, but in general terms. We don’t even use a whole number for that:

Hundreds of + noun (“There were hundreds of adolescents in that party”)

## Example

- 100 (one hundred)
- 871 (eight hundred seventy-one)

## Use

**Hundreds numbers** are used to measure, count, label things, codes from 100 to 999.

In formal writing it is better to write the number in letters when it is a short figure.