What is the value of 2 + 2 = ?

The correct answer is: 4

Explanation
This is a basic addition problem. When you add 2 and 2 together, you combine the quantities to get the total.

Steps:

1. Recognize the operation: addition ($+$).
2. Add the two numbers: $2 + 2$.
3. Calculate the sum: $2 + 2 = 4$.

Therefore, the answer is 4.