When I was growing up, one of the games my mom would play with me is War. Remember War? You and an opponent lay down cards and the player with the higher valued card wins them both. When the cards had the same values, then a “war” would break out and the player who had the higher valued card won them all. Things got crazy when you actually played into the rare double and triple “wars.”
Besides the friendly competition of the game, it taught and reinforced basic counting skills, and forced me to think and compare the numbers as quickly as I could so the game would continue. Sure, mom could have helped me out, but she wanted me to get more out of the game than just entertainment.
As I got older, my mom changed the rules of the game on me. Instead of winning by having the highest card, she turned it into a multiplication game. Playing was a little different, of course. To start, we used two separate decks with the face cards removed. Then during each round, we each laid down two cards each and had to multiply them together. Whichever player had the higher total was the winner of the round. If the products matched, then a “war” was on. Each player would put down four more cards, two facing down. The product of the two cards facing up would be the determining factor of who won all the cards, including the first four. That was a major win!