1. The problem is to understand the effect of adding a positive number on a number line. 2. When you add a positive number to a value, you move that value to the right on the number line. 3. For example, if you start at 0 and add 5, you move 5 units to the right, landing at 5. 4. This is because positive addition increases the value, shifting it rightward. Final answer: Adding a positive number moves a point to the right on the number line.