C Program to Calculate Multiplication and Addition, and Check Division Remainder

Sure, let's break down the problem step by step.

1. Include necessary headers: We need to include the standard input-output header for basic functionalities.

2. Declare variables: We need variables to store the two input numbers, their multiplication, addition, and the remainder of their division.

3. Input the numbers: We will prompt the user to enter two numbers.

4. Perform calculations: We will calculate the multiplication, addition, and the remainder of the division of the two numbers.

5. Output the results: Finally, we will print the results of the calculations.

Here is the complete program:

#include <stdio.h>

int main() {
    int num1, num2;
    int multiplication, addition, remainder;

    // Input the numbers
    printf("Enter the first number: ");
    scanf("%d", &num1);
    printf("Enter the second number: ");
    scanf("%d", &num2);

    // Perform calculations
    multiplication = num1 * num2;
    addition = num1 + num2;
    remainder = num1 % num2;

    // Output the results
    printf("Multiplication of %d and %d is: %d\n", num1, num2, multiplication);
    printf("Addition of %d and %d is: %d\n", num1, num2, addition);
    printf("Remainder when %d is divided by %d is: %d\n", num1, num2, remainder);

    return 0;
}

Explanation:

1. Headers: #include <stdio.h> is included to use printf and scanf functions.
2. Variables: num1 and num2 store the input numbers. multiplication, addition, and remainder store the results of the respective operations.
3. Input: scanf is used to read the input numbers from the user.
4. Calculations:
   • multiplication = num1 * num2 calculates the product.
   • addition = num1 + num2 calculates the sum.
   • remainder = num1 % num2 calculates the remainder of the division.
5. Output: printf is used to display the results.

This program will prompt the user to enter two integers, perform the specified operations, and then display the results.