| Most Difficult Math Tests, Gareth Moore • anticexlibris.ro | 18.98 RON |
| The Most Difficult Math Tests: Prove Your Arithmetic Prowess by Solving These Tough Numerical Puzzles, Paperback - Moore Dr Gareth Moore • elefant.ro | 77.99 RON |
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 worlds finest puzzle-setters. With puzzles ranging from killer Sudoku to numerical crosswords, this colourful puzzle book will keep you entertained for hours.