Numbers

Thirteen is the number after twelve and before fourteen.

Thirteen is sometimes called a baker's dozen.

There is one cat in the picture. The number that comes after one is two.
You can also use one as a pronoun, for example "one must do one's homework".

There are three ( 3 ) grapefruit in the picture. If you cut something into three pieces, you get thirds. The number before three is two. The number that comes after three is four.

You can count to five on your fingers on one hand. The number before five is four. The number that comes after five is six.

There are seven fronds on the fern in the picture. The number before seven is six. The number that comes after seven is eight.

There are nine sunglasses in the picture. The number before nine is eight. The number that comes after nine is ten.

Eleven (11) is the number after ten and before twelve. Eleven is a prime number.

A dozen is another word for twelve (12). A half dozen is another word for six (6). A lot of things are sold by the dozen, like roses and eggs.