$1 + 1 = 2$.

Would you like further details or have any questions?

Here are five related questions to explore further:

1. What is $2 + 2$?
2. What is $3 + 5$?
3. How do we add larger numbers, like $125 + 378$?
4. How does addition work with negative numbers, like $-3 + 7$?
5. How is addition applied in real-world scenarios, like adding quantities?

Tip: When adding numbers, the order doesn't matter, thanks to the commutative property of addition: $a + b = b + a$.