This game is a modified version of the old card game "War." In this game students turn over 2 cards and either add to find the sum and then determine which player has the highest sum or they subtract to find the difference and determine who has the lowest difference. A major difference from my game & the old card game is that I've created a game board, so students know exactly where to place the cards that they are using to make a sum/difference, their pile of playing cards, & their pile of cards that they've won.
*Addition Game Board
*Subtraction Game Board
*0-20 number cards
This game is great practice for the Common Core Standard for 2nd graders to fluently add/subtract mentally to 20. It can also be adapted for the Kindergarten standard to 5 and 1st grade standard to 10, by removing the appropriate playing cards.
I hope that your students enjoy this game as much as mine do.