The result of $4 + 1$ is:

$4 + 1 = 5$

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Here are 5 related questions to expand on this:

1. What is $4 + 3$?
2. Can you subtract 1 from 4?
3. What is $5 - 1$?
4. What happens if you multiply 4 by 2?
5. Can you divide 5 by 1?

Tip: Addition is the most basic arithmetic operation. It's helpful to think of it as combining or grouping quantities together.