This is a fun math game that is used to compare decimals through the hundred-thousandths place. It played like traditional war is played with playing cards where students compare decimals and the student with the largest decimal wins. There are 54 cards provided and an idea/directions page for the game. This is directly under the Common Core Math Standard 5.NBT.3b for 5th grade. However, it would be appropriate as enrichment for 4th grade or review for 6th grade. Have fun!