Can anybody make this code errrofree

Question

https://code.sololearn.com/cPM7x6myxiql/?ref=app

Answer 1

hi,
you don't define/declare num1 value and num2 value before use them in operation ?!

how divide or multiple them with no value before ?...

none//1 = error
none**6 = error

Answer 2

https://code.sololearn.com/cPM7x6myxiql/?ref=app