$2 + 2 = 4$

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Here are some related questions you might find interesting:

1. What is $2 \times 2$?
2. How do you solve $2 + 3 + 4$?
3. What is $4 - 2$?
4. How do you find the sum of $2 + 2 + 2$?
5. What is $2^2$?

Tip: When adding small numbers, try using objects like fingers or counters to visualize the addition process.