$1 + 1 = 2$

Would you like more details or have any questions?

Here are five related questions for further exploration:

1. What is $2 + 2$?
2. What is $1 + 2$?
3. How would you represent $1 + 1$ in binary?
4. What is the sum of $1 + 1$ in Roman numerals?
5. Can you calculate $1 + (-1)$?

Tip: Addition is commutative, meaning $a + b = b + a$.