Check out these websites for assistance.

Homework Help - Everyday Math
Math help for Everyday Math.  Check out this site first if you have questions.

Everyday Mathematics^© Resource Guide
It includes parent resources and student pages.

Everyday Mathematics Center - University of Chicago School Mathematics Project
Sample games from Everyday Mathematics, math fun and challenges for the whole family, problems (K-5), brain teasers and More Brain Teasers

The World of Math includes:
fractions, decimals, integers, exponents, inequalities, percents, and square roots

The Mathforum: Ask Dr. Math
Have a math question?  Ask Dr. Math!

S.O.S. Math - Algebra
Algebra help – Online 

Decimals, Whole Numbers, and Exponents
Instructional information including adding, subtracting, multiplying, and dividing with decimals; factorial notation; and square roots. 

Webmath offers math homework help and math word problems at DiscoverySchool
Discovery School’s instant solutions for your math problems.

On-line Math Activitieswww
Online math activities for students

Elementary Math Elementary Mathematics, Math Activities, Math Lessons, Games
This site has a list of sites to visit, plus the following topics to answer your questions:
addition, subtraction, multiplication, division, counting, fractions, ratios, and word problems