C program to perform all arithmetic operations

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C program to perform all arithmetic operations

Write a C program to input two numbers and perform all arithmetic operations. How to perform all arithmetic operation between two numbers in C programming. C program to find sum, difference, product, quotient and modulus of two given numbers.

Required knowledge

Data Types in c, Input/Output in C, C Operators

In this exercise, we will pedal bit more and compute results of all arithmetic operations at once.

Program to perform all arithmetic operations

/**
 * C program to perform all arithmetic operations
 */

#include <stdio.h>

int main()
{
    int num1, num2;
    int sum, sub, mult, mod;
    float div;

    /*
     * Input two numbers from user
     */
    printf("Enter any two numbers: ");
    scanf("%d%d", &num1, &num2);

    /*
     * Perform all arithmetic operations
     */ 
    sum = num1 + num2;
    sub = num1 - num2;
    mult = num1 * num2;
    div = (float)num1 / num2;
    mod = num1 % num2;

    /*
     * Print result of all arithmetic operations
     */
    printf("SUM = %d\n", sum);
    printf("DIFFERENCE = %d\n", sub);
    printf("PRODUCT = %d\n", mult);
    printf("QUOTIENT = %f\n", div);
    printf("MODULUS = %d", mod);

    return 0; 
}

In statement div = (float) num1 / num2;, I have typecasted num1 to float before the divide operation, to avoid integer division.

Note: \n is an escape sequence character used to print new lines (move to the next line).

Output:

Enter any two numbers : 20 10
SUM = 30
DIFFERENCE = 10
PRODUCT = 200
QUOTIENT = 2.000000
MODULUS = 0

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