The sum of 1 and 1 is:

$1 + 1 = 2$

Would you like more details or have any questions?

Here are some related questions to expand your understanding:

1. What is $2 + 2$?
2. How do you add two single-digit numbers?
3. What is the sum of $5 + 3$?
4. Can you find the sum of $7 + 8$?
5. What is $9 + 6$?

Tip: When adding two numbers, it can be helpful to visualize them on a number line to see how they combine to form the sum.