Any problem can be solved in different ways, but textbooks most often offer only one solution. The real skill is not to use the standard method from time to time, but to find the most suitable, even unusual, way to solve. This book talks about ten different problem solving strategies. Each chapter begins with a description of a specific strategy and how it can be used in everyday situations, and then gives examples of the application of such a strategy in mathematics. For each problem, the authors first provide a standard solution, and then a more elegant and unusual method. This way you will find out how much the strategy under consideration makes it easier to find the answer.