How to play Math War
- Split a deck evenly between two players, face down.
- Both players flip two cards at the same time.
- Each player adds (or multiplies) their own two cards.
- The player with the higher total wins all four cards.
- The player with the most cards when time runs out wins.
Variations
- Negative numbers: red cards are negative, black cards are positive.
- Kindergarten: flip one card each and compare which is bigger.