This is an example program that demonstrates how you can perform the addition of two user given numbers in C language.

In this program first we are taking two integer numbers from the user, and then displaying the result of addition into the console.

Program

NumberAddition.CCopy
#include <stdio.h>

int main() {

    int num1, num2, sum;

    printf("Enter 1st number : ");
    scanf("%d", &num1);

    printf("\nEnter 2nd number : ");
    scanf("%d", &num2);

    sum = num1 + num2;

    printf("\nResult = %d\n", sum);

    return 0;
}
Try It

Output

Enter 1st number : 10
Enter 2nd number : 20
Result = 30