By leveraging technology, and once again, by using various free sites, your child's math skills will exceed expectations.

The "math arcade" at http://www.funbrain.com/kidscenter.html is one of my children's favorites, with the ability to customize the challenges to each child's age, starting at the first grade level.

For younger kids, Sesame Street has good material.

OTHER EXCELLENT, FREE SITES

http://www.gamequarium.com/

http://resources.kaboose.com/games/math1.html