The sum of $1 + 1$ is $2$.

Would you like more details or have any questions?

Here are five related questions you might find interesting:

1. What is $2 + 2$?
2. How do you solve $1 + 2 + 3$?
3. What is the sum of $10 + 20$?
4. How does addition work with larger numbers?
5. Can you add negative numbers like $-1 + 1$?

Tip: In mathematics, addition is one of the basic operations where two numbers are combined to make a larger number.