The given question asks whether to add or subtract the numbers 5 and 2. The correct answer is "add, subtract" because both addition and subtraction are valid operations for finding the result of the equation 5-2. Adding 5 and 2 would give a sum of 7, while subtracting 2 from 5 would also give a result of 3. Therefore, both addition and subtraction can be used to solve this equation.