This is a great way to reinforce what an integer is and help the students to quickly realize how to solve and answer integer problems. Plus a integer game is a better way to reinforce the concept compared to using integer worksheets for kids. Most kids love to play cards. A standard deck of playing cards is a great resource for reinforcing integer concepts and operations playing variations on the classic card game "War".
Take out Jacks, Queens and Kings (or ace=1, jack=11, queen=12, king=13, joker=0).
NOTE: Can be played with more than 2 players
from:
http://www.mathfilefoldergames.com/integer-war/