Random Integer Addition & Subtraction on Number Line

This GeoGebra applet demonstrates the dynamic generation and interactive solving of random integer addition and subtraction problems within the range of -10 to 10. The core mathematical concepts covered include positive and negative integers, geometric representations on a number line, and the operational rules of rational addition and subtraction. To construct this interactive environment, the applet utilizes key GeoGebra commands and objects such as Point, OrthogonalLine, Segment, and Line to render a clear, functional number line. It further employs Textfield, If conditional logic, and input boxes to manage the random problem generation, capture user inputs, and provide immediate feedback. This tool is highly suitable for upper elementary and middle school students (specifically around grade 7 when introducing rational numbers) to reinforce arithmetic skills, visualize integer operations on a number line, and engage in self-paced practice or classroom quizzes.