The result of $4 + 4$ is $8$.

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Here are five related questions to expand on this:

1. What is $4 \times 4$?
2. What is $8 - 4$?
3. How do you express $4 + 4$ as a multiplication?
4. If you double the sum of $4 + 4$, what do you get?
5. What is the square root of 16?

Tip: Addition is the basic arithmetic operation used to combine two numbers.