Online Calculator http://www.calculator.com
Adding Integers http://matti.usu.edu/nlvm/nav/frames_asid_161_g_2_t_1.html
Subtracting Integers http://matti.usu.edu/nlvm/nav/frames_asid_162_g_2_t_1.html
Virtual manuipulatives and games ***** http://nlvm.usu.edu/en/nav/category_g_4_t_1.html
Math Help and Practice http://www.aaamath.com/grade7.html
Math tutorials, examples, and practice http://www.mathsisfun.com/
Cool math games and puzzles http://www.cut-the-knot.org/Curriculum/index.shtml
Brain Bashers - The fun way to think logically! http://www.brainbashers.com/sudoku.asp
Interactive activities for every topic. http://www.internet4classrooms.com/skills_7th_math.htm
Practice addition, subtraction, multiplication, and division. http://www.playkidsgames.com/games/apples/savetheApples.htm
Glossary. Find the definitions for math vocabulary. http://www.learnalberta.ca/Launch.aspx?content=%2fcontent%2fmesg%2fhtml%2fmath6web%2fmath6shell.html
Cool Math Games http://coolmath.com
FunBrain Games http://www.funbrain.com
Tangrams http://www.gieson.com/Library/projects/games/matter/