A collection of fun mental maths games where players add, subtract or multiply to get the highest possible scores Beautifully illustrated with images by Tony Ross from David Walliams' best-selling book Gangsta Granny Ideal for Key Stages 1-2 to help develop key maths skills Great fun for 1+ players —description from the publisher Includes rules for Addition War Multiplication War Subtraction War Fraction War and others. Helps to improve mental arithmetics.

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