célszámok

Célszámok, often translated as "target numbers" or "goal numbers," is a mathematical game or puzzle that involves using a given set of numbers and basic arithmetic operations to reach a specific target number. The objective is usually to find an expression that evaluates to the target number using each of the given numbers exactly once.

The game typically involves a small set of source numbers, perhaps four to six, and a larger target number. The allowed operations are usually addition, subtraction, multiplication, and division. Sometimes, parentheses are allowed to control the order of operations. The challenge lies in the combinatorial explosion of possibilities, requiring strategic thinking and sometimes trial and error.

Célszámok puzzles can be found in various contexts, including educational settings to practice arithmetic and problem-solving skills, and as recreational puzzles in magazines and online. Variations exist, such as allowing numbers to be used more than once or introducing more complex operations. The game can be adapted for different age groups and skill levels by adjusting the complexity of the source numbers and the target number. It encourages logical deduction and the exploration of different mathematical combinations.