Solution

153390

First name
Sophie Cowne
School
Wallington High School for Girls
Country
Age
11

These are answers to the easy part of the problem.These are a few answers to the problem but probably not every single one so don't worry if you come up with one that I haven't mentioned:)

58-27=31
78-52=26
87-52=35
78-25=53
87-25=62
85-27=58
85-72=13
75-28=47
82-75=7