The Number Detective

This is an intriguing and original puzzlebook where unknown numbers have to be identified by using 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 [...]
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This is an intriguing and original puzzlebook where unknown numbers have to be identified by using 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.