I'm sitting wjec maths intermediate GCSE In may.

if a question doesn't give you the value of pi is it a calculator question?

Not necessarily. You can still work out the answers in terms of pi.
For example, in a non calc paper, if there’s a circle and the radius of the circle is 4 and you had to find the area…
Area = π x 4²
= 16π
So your answer would be 16πcm²

thanks that helps a lot so I don't have to remember the value of pi if your not given the value of pi you just square the radius