21X: Blackjack for Math Lovers

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21X is a light, fast paced card game that fuses Blackjack with algebra. Like Blackjack, you’ll be dealt 2 cards with the objective of getting them to add up to 21. However, the car ds you’re being dealt, have a twist to them… they’re algebraic formulae! It’s a perfect gift for maths loving friends and family members, a fun algebra learning tool for schools and fantastic for avid maths puzzlers. Price = 2477 pence (the 367th prime number) = £24.77 Show more