Why won't this calculator do multiplication correctly?

Question

https://code.sololearn.com/c3ap3b7A6Zid/?ref=app

Answer 1

You’ve missed to call the multiply() function.

Answer 2

https://www.sololearn.com/learn/CPlusPlus/1635/

Answer 3

What did you put in? Whatever multiplication problem I put in, it just shows the first number.

Answer 4

How to I call the function? I'm a rookie.

Answer 5

Only the main function is executed.
Here is an example based on your code:

https://code.sololearn.com/cOW3fbke9HgA/?ref=app

Answer 6

Thanks!