The answer to $1 + 1$ is $2$.

Would you like further details or explanations?

Here are 5 related questions:

1. What is the sum of $3 + 4$?
2. How does addition work with negative numbers, such as $-2 + 3$?
3. What is the result of adding decimals, for example $1.5 + 2.3$?
4. How do we add fractions, like $\frac{1}{2} + \frac{1}{4}$?
5. Can you explain the properties of addition in math?

Tip: Remember that addition is a commutative operation, meaning $a + b = b + a$.