Not for the faint of heart, Math Block features a range of mathematic problems, puzzles and mazes, from easy-as-pie to brain-crushingly difficult, to challenge your noggin when it's in need of some exercise, all in a fun 3x3" block. Hope you remember those mnemonic devices because Please Excuse My Dear Aunt Sally, you're going to need them! With over 600 pages of puzzling riddles, word problems, logic puzzles, Sudoku and KenKens, mazes, chess puzzles, and traditional math equations, this "Rubik's cube for math minds" will test your knowledge of arithmetic, geometry, logic, patterns, statistics... and even some calculus. Keep a copy on your desk to keep your mind sharp, or give as a gift to the problem-solver in your life.