mathematical recreations

Contains more than one hundred math problems with three different levels of challenge.

A collection of logic puzzles and mathematical recreations for children.

Explores the math concepts that are used in games, and includes exercises in each area with answers.

Introduces ten key concepts in recreational math, and describes the principles behind them, each with related puzzles and problems.

Examines the history of the quest to solve the mathematical conundrum posed by the question of what is the least possible number of colors needed to fill in any map so that neighboring countries are always colored differently.

Contains fifty math puzzles using algebra and symbols.

Contains fifty math puzzles using shapes and symmetry.

Contains fifty math puzzles using mental math problems.