Are the following sentences natural to a native ear?
1. I need some help with understanding my monthly statement.
2. I don't understand how the following values are calculated.
3. A map is an/the example of a model we use in our everyday life.
not a teacher
With the exception of 'with' the 1st and 2nd are fine.
A map is AN example is better than 'the' which implies it is the only one.