The sum of $5 + 7$ is:

$5 + 7 = 12$

Would you like more details or have any questions about this?

Here are five related questions:

1. What is $12 - 5$?
2. What is $7 + 9$?
3. How do you find the sum of two numbers?
4. What is $12 \times 2$?
5. If you add 3 to 12, what is the result?

Tip: Adding numbers can be visualized on a number line to better understand the process.