SimplyClever.Cards Functions 1 combines traditional playing cards with math flash cards. The deck has 52 cards in 4 colours with 13 different linear and power functions, and 4 jokers. Each card is illustrated with a function expression or graph corresponding to the card value. One joker has a table showing which 4 cards match up for each value, in order to check the math when necessary. The remaining 3 jokers have the mathematical operators - (negation), d/dx (derivative) and = so you can make your own calculations combining this deck with SimplyClever.Cards Functions 2 and SimplyClever.Cards Derivatives 1. Designed to be used like a regular deck of cards (including traditional pips for suits and ranks), SimplyClever.Cards Functions 1 allows you to play any regular card game you want to - but with a mathematical twist! Game examples: 500, Casino, Crazy Eights, Go Fish, Hearts, Memory, Old Maid, Slap Jack, Snap, UNO etc.