In the game Multiplication War, what do players turn over to determine the winner of each round?

In the game Multiplication War, players turn over two cards to determine the winner of each round. Each player reveals one card, and the product of the two numbers on the cards is calculated. The player with the higher product wins that round. This straightforward mechanism allows players to engage with multiplication in a fun and interactive way, reinforcing their skills as they calculate and compare the results. The choice of two cards is key to maintaining a balance in gameplay, ensuring each player has an equal opportunity to win the round based on their cards' values.