Addition Problem: Finding the Sum of 25 Plus 5 Units

To solve this problem, we'll follow these steps:

• Step 1: Identify the numbers that need to be added.
• Step 2: Perform the addition operation on these numbers.
• Step 3: Confirm the sum corresponds to one of the provided choices.

Now, let's execute each step:

Step 1: Identify the numbers to add. The numbers mentioned are 25 and 5.

Step 2: Perform the addition:
$25 + 5 = 30$

Step 3: Verify which choice matches our computed result. The correct answer is choice 1, which shows $30$.

Therefore, the solution to the problem is $30$.