Can't understand C+

Hi,
I just start a class called programing logic and design and I do well on my tests but cannot figure out to write a prsuedocode and flowchart for the following project. How do you code a program to do 4 separate functions, *, / , +, and - ,

For the life of me I cannot figure this out. Any help would be greatly appreciated.

#include ///////

int step1()
{
//do stuff
return 0;
}

int step2()
{
//do stuff
return 0;
}

int step3()
{
//do stuff
return 0;
}

int step4()
{
//do stuff
return 0;
}

int main()
{
step1();
step2();
step3();
step4();
return 0;
}

Maybe?