statement missing.. please help

[jaywengz]

#include<stdio.h>
#include<conio.h>
#define p printf
#define s scanf
main ()
{
p("Calculator");
p("1-add");
p("2-subtract");
p("3-multiply");
p("4-devide");
p("Enter Operation");
s("%d",&Operation);
switch(Operation)
{
case1:
p("1st#:");
s("%d",num1);
p("2nd#:");
s(%d",&num2);
formula num3=num1+num2
p("sum is %d"num3);
case2:
p("1st#:");
s("%d",num1);
p("2nd#:");
s(%d",&num2);
formula num3=num1-num2
p("difference is %d"num3);
case3:
p("1st#:");
s("%d",num1);
p("2nd#:");
s(%d",&num2);
formula num3=num1*num2
p("product is %d"num3);
case4:
p("1st#:");
s("%d",num1);
p("2nd#:");
s(%d",&num2);
formula num3=num1/num2
p("quotient is %d"num3);
getch
}

[weaknessforcats]

There are many coding errors here. The big one is that you are using variables without ever creatinf the variable. There are various typos.

I suggest you compile this again and fix only the first error. The first error can cause a ton of other errors which go away when the first error is fixed.

Repeat this process fixing only the first error until all the errors are gone.

The word formula is used and I have no idea what you intended. You might post again and explain that.