Card catalog description
A collection of old and new problems, puzzles, games, and diversions based on probability, geometry, number patterns, magic squares, and the laws of physics.
Math Puzzles and Games FROM OUR EDITORS
Enough problems, puzzles, games, & diversions to keep the entire family happily busy for hours. Filled with hundreds of illustrations that pose problems & demonstrate their solutions, including number problems, puzzles involving flat and solid shapes, mathematical games, more. None call for special knowledge; all you need is patience and some thought.