1. The problem asks us to write an expression or solution in a way suitable for a test setting. 2. To approach any math problem on a test, clearly state the problem and then provide step-by-step reasoning. 3. Explain each step with clarity, showing all calculations or algebraic manipulations. 4. Format your final answer cleanly so it stands out, typically boxed or underlined. This approach ensures full credit on tests by demonstrating understanding and clear communication.