The answer to $2 + 2$ is $4$.

Would you like more details or have any other questions? Here are 5 related questions to expand on this concept:

1. What is the sum of $3 + 3$?
2. How do you add two numbers in general?
3. Can you explain the commutative property of addition?
4. What happens when you add $2 + 2 + 2$?
5. How is addition different from multiplication?

Tip: When adding, the order of the numbers doesn’t matter. This is called the commutative property of addition.