Solution

160077

Problem / game
Your number was... Back to problem
First name
Zani
School
Frederick Irwin Anglican School
Country
Australia
Age
12

Basically, the calculator reverses the steps. For example;

Say my ending number was 3, the calculator would add 7, divide by 2 and subtract 4, instead of adding 4, multiplying it by 2 and subtracting 7 which we needed to do.