The Most Difficult Math Tests provides an exceptional challenge for even the most adept of puzzlers.
All aspects of arithmetical thinking are tested by the world's finest puzzle-setters. With puzzles ranging from killer Sudoku to numerical crosswords, this colourful puzzle book will keep you entertained for hours.
The Most Difficult Math Tests provides an exceptional challenge for even the most adept of puzzlers.
All aspects of arithmetical thinking are tested by the world's finest puzzle-setters. With puzzles ranging from killer Sudoku to numerical crosswords, this colourful puzzle book will keep you entertained for hours.