When doing ( bidmas, inverse and direct propration) can i assume they will be just whole numbers?

So i'm doing a online course for maths and in bidmas and direct and inverse propration questions i've never had any negative numbers or decimal answers to choose from. ( only whole numbers)

Is this normal I would like to know please so i can include this in my flashcards.

The online course is level 2 functional skills in the uk

Thanks