Decomposing a given integer into two integers whose sum matches

This GeoGebra example demonstrates how to pick a target integer s and then construct two integers a and b such that their sum always satisfies the equation a + b = s. The key mathematical ideas are integers, addition, and constrained solution construction for a simple linear equation on a discrete set. In the construction, Random is used to generate the target value s; Textfield together with InputBox1 and InputBox2 are used to input/display the integers a and b; an intermediate object ab can be computed and displayed as part of the interactive setup; multiple text objects (text1–text4) present the computed results and relationship, while button1 provides a user-controlled trigger for updating the figure. The activity is suitable for middle-school algebra (integer arithmetic and equations) and for interactive GeoGebra practice or introductory modeling tasks.