The sum of $2 + 2$ is $4$.

Would you like further details on basic addition or any questions about arithmetic?

Here are 5 related questions for you to consider:

1. What is $5 + 3$?
2. How do you add two negative numbers?
3. What is $2 \times 2$?
4. How do you solve $4 + 6 - 2$?
5. What is the sum of $10 + 15$?

Tip: When adding two numbers, it helps to visualize combining groups of objects to see the result!