The answer to $1 + 1$ is: $1 + 1 = 2$

Would you like more details or do you have any questions?

Here are some related questions to explore:

1. What is the sum of 2 + 2?
2. How do you add numbers with more digits, like 123 + 456?
3. What happens when you add negative numbers, like -1 + -1?
4. How do you add fractions, such as $\frac{1}{2} + \frac{1}{3}$?
5. What is the difference between addition and multiplication?

Tip: Addition is one of the basic arithmetic operations. It's commutative, which means the order in which you add numbers does not change the result: $a + b = b + a$.