So, I have an amazing relative who loves math and she showed me some websites that I think are very helpful and (for the most part) fun.
How many of you like football? Here's a game that can help you learn how to add and subtract with negative and positive numbers.
http://www.mathgoodies.com/games/integer_game/
Here's some help for parents (look under the purple "Quick Reference" tab)
http://www.classzone.com/cz/books/algebra_1_2007_na/book_home.htm