This is an intriguing and original puzzle book where unknown numbers have to be identified by a series of cryptic clues. Logical thinking and systematic detective work is required and these puzzles offer a fine way to reinforce the meaning of mathematical words and to investigate and appreciate the ever fascinating properties of numbers.

Binding: Paperback;56 pages; Publisher: Tarquin Publications; Classification: WDK; Weight: 276 g; Dimensions: 239 x 175 x 5

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