For grades 3-5. This is my own webpage. There are a variety of math sites for different skills. http://wizard.4teachers.org/builder/worksheet.php3?ID=50114
Grades 1-5. This web page has sites for all of the math strands. It is good to use when your child has already been on it at school with me. http://rozauer.tripod.com/elemmath.htm
visit my blog http://itsanumberriddletome.blogspot.com/
math videos- there is a fun place value video with Mr. T. http://www.mrnussbaum.com/mathvideos.htm
For grades 1-5. Generates on- line flash cards for fact practice. http://www.mathfactcafe.com