I'm thinking of hacking my calculator and saving notes on it to cheat
Is it that even possible to hack a calculator? Why are you telling me about this?
Sure, I want to tell someone that if I do this I will be done faster.
Cheating is never good when you are trying to gauge what you learn from school. How would you know if you understand the subjects when you cheat on your test?
I don't know I just feel like I'll have an advantage.
We all want that advantage but the gained will be only on that one test. Just study ahead and you will have that advantage for the rest of the school year.