This game is played just like regular war. Students deal out all of the cards. then they turn over one card at a time. Each students says his/her decimal. The student with the highest decimal wins the cards. The keep playing until one player has all the cards.
To enrich this game, I have student turn over two cards and add them together. They say the sum. The student with the highest sum wins those cards.
Photo copy these pages back-to-back so that the number is on one side and the words are on the other. I make multiple copies of each sheet so that there are more cards in a deck.