Hi there Robbb123_123 (AKA Rob - if you don't mind),
Unfortunately we can't really give out samples. But the maths questions are fairly basic. Consider them to be.. approximately GCSE level. Speed is the key however. So whilst your maths from graduate schemes is almost certainly up to scratch, I would very much suggest you brush up on the old mental arithmetic and speed of mental calculation.
The better you know the ATC Motivation pamphlet the better off you will be. Although hopefully it will leave you pleasantly surprised by the difficulty of the paper. Better that than to be under-prepared.
If you're happy on cubes etc, then all I need to do is wish you the best of luck.
Phil