Final answer:
To complete the puzzle where each row, column, and diagonal adds up to the same total, you need to use the digits 1, 2, 3, and 4. Here is an example solution.
Step-by-step explanation:
To complete the puzzle where each row, column, and diagonal adds up to the same total, you need to use the digits 1, 2, 3, and 4. Since each digit can only appear once in a row, column, and diagonal, you must strategically place the digits. Here is an example of how you can fill in the puzzle:
1 3 2 4
4 2 1 3
3 1 4 2
2 4 3 1
In this solution, each row, column, and diagonal adds up to the same total of 10.