Project Interactivate 

Great activities for higher level thinking and skills practice

 IXL Math   
You can use one FREE activity per day

FactDash  
Practice Math Facts

Test Taking Skills  
Links to several sites to practices test taking skills

Problem Solving 
(Excellent!) 

More Test Practice

Math Playground

*****This is a
5 Star Site!

Education.com:
Fun and Useful Activities

for all grades

 Internet 4 Classrooms:
Great resource for all subjects
and grade levels. 

By Grade 

Mr. N's Math Games

 National Library of Virtual Math Manipulatives 
(also Excellent!) 

Learning Planet
Good Games