How to make a calculator

Question

subraction and additions

Answer 1

https://code.sololearn.com/cnSdWHB4BYUa/?ref=app

Answer 2

Read carefully the instructions, because this was my first and my most basic Calculator

Or using python,
print(eval(input()))

https://code.sololearn.com/cnyKblGRPMN5/?ref=app