This is a program to do simple arithmetic operations Addition, Subtraction and Multiplication of a given number, in this program we are not taking numbers as input from the user, instead we will pre-define it within the program using a ‘int’ variable to make this C program simpler for beginners.

**So, lets take a look at the source code of this C program this arithmetic operations.**

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #include <stdio.h> // Include the contents of the standard header void main() //Defining main function { int first, second, add, subtract, multiply; // Defining local variables clrscr(); //Calling clear screen function first=22; //Initialize variable second=10; //Initialize variable add = first + second; //add values and store output to 'add' variable subtract = first - second; /*subtract values and store output to 'subtract' variable */ multiply = first * second; //store output to 'multiply' variable printf("Sum = %d\n",add); //print value of add printf("Difference = %d\n",subtract); //print value of subtract printf("Multiplication = %d\n",multiply); //print value of multiply getch(); //Waits for user input } |

### The Output for this Program will be

1 2 3 | Sum = 32 Difference = 12 Multiplication = 220 |

In this simple C program we can do some modifications to check for smaller number and then do the subtraction from large number, we will do that in next program.

You can also Mathematics C Program to use it, and let me know if you face any issue with this program by leaving a comment below.

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