The game's cover is purple with transparent numbers in the background; there is a magician holding a wand on top of a cloud with the words "Proof!" in red.
The game is set up for play: two sets of four cards with numbers in purple on them, a stack of cards, and the game box sitting behind them.

Proof!

$ 17.99
$ 17.99
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Could you be the Harry Potter of math? Prove your mathematical wizardry: pit your mental-math skills against an opponent's, making simple equations, shouting them out, and collecting cards. 

Proof! is recommended for ages 9+.  For 2-6 players