If you include the next line in all your web pages, they will all share the same look. This makes it easier to make new pages for your site. -->

Addition

1 + 1 = _____

2 + 2 = _____

3 + 3 = _____

4 + 4 = _____

5 + 5 = _____

6 + 6 = _____

7 + 7 = _____

8 + 8 = _____

9 + 9 = _____