If you want extra practice, click the links below to play some fun adding and subtracting integers games:
http://www.math-play.com/integers-game.html
http://www.arcademics.com/games/orbit-integers/orbit-integers.html
http://www.mathplayground.com/ASB_SpiderMatchIntegers.html
https://www.sheppardsoftware.com/mathgames/integers/FS_Integer_subtraction.htm
http://www.mathgoodies.com/games/integer_game/football.html
http://www.mathnook.com/math/skill/integergames.php
http://www.arcademics.com/games/orbit-integers/orbit-integers.html
http://www.mathplayground.com/ASB_SpiderMatchIntegers.html
https://www.sheppardsoftware.com/mathgames/integers/FS_Integer_subtraction.htm
http://www.mathgoodies.com/games/integer_game/football.html
http://www.mathnook.com/math/skill/integergames.php