$2 + 2 = 4$.

Would you like details on this calculation or have any questions?

Here are some related questions to explore basic arithmetic further:

1. What is $3 + 5$?
2. How does subtraction work with small numbers, like $7 - 2$?
3. What happens when we multiply $2 \times 3$?
4. Can you explain the concept of division, using $8 \div 4$?
5. What is an example of a word problem that uses addition?

Tip: Practicing with simple arithmetic helps build a strong foundation for more advanced math concepts!