Addition and Subtraction
Addition:
1. Alien Addition- http://www.arcademicskillbuilders.com/games/alien/alien.html
2. Pirate Addition- `http://www.fun4thebrain.com/addition/arrrgh.html
3. Penguin Addition- http://www.sheppardsoftware.com/mathgames/popup/popup_addition.htm
4. Pizza Addition- http://www.fun4thebrain.com/addition/pizzaAdd.html
5. Add marbles up to 10- http://www.learninggamesforkids.com/math_games/addition/math-lines-10.html
Subtraction:
6. Pirate Subtraction- http://www.fun4thebrain.com/subtraction/arrrgh.html
7. http://www.fun4thebrain.com/subtraction/classroomCapersSub.html
8. http://www.fun4thebrain.com/subtraction/goneBananas-Subtraction/bananasSub.html
9. http://www.ictgames.com/soccer_subtraction.html
10. http://www.arcademicskillbuilders.com/games/mission/mission.html
11. http://www.fun4thebrain.com/subtraction/subpunypets.html