Newton Family Math Page - additional games and resources are posted here
Investigations3: Scroll down to Elementary Math Resources (or click on the link below)
ST Math (log in with google)
Freckle (no longer offers a free account)
Math Facts:
Problem Solving Websites:
Telling Time
Games:
Ken Ken Puzzles (begin with 3x3 easy and work your way up)
Prodigy Math (a parent will have to help you set up an account)
Addition and Subtraction Strategies
Mad Minute Fact Sheets
Addition, Subtraction, and Multiplication