One, two, three, ...

The **cardinal numbers** are 0, 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, ... .

They answer the question, "How many?".

There are ten **digits**: 0, 1, 2, 3, 4, 5, 6, 7, 8,
9.

There are many ways to count. The basic way is to label
the objects you want to count with consecutive numbers starting with the number 1:

1 | 2 | 3 |

4 | 5 | 6 |

7 | 8 | 9 |

10 | 11 | 12 |

There are 12 yellow boxes. We could also count the yellow boxes with a computation:

1 | 2 | 3 | |

1 | |||

2 | |||

3 | |||

4 |