Arithmetic Operator

What is operator?

Operator is a symbol which is used for mathematical operation and logical manipulation.

Syntax

left-operand operator right-operand

example:
5 + 9 or a + b

+ is used to add two values(variable).

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 int a;
 int b;
 int sum;
 clrscr();
 printf("Enter value of a: ");
 scanf("%d",&a);
 printf("\n Enter value of b: ");
 scanf("%d",&b);
 sum = a + b;
 printf("\n %d + %d = %d",a,b,sum);
 getch();
}

See Output

printf("%d + %d = %d",a,b,sum); in this statement a,b and sum respectively display on %d places.

- is used to subtract two values(variable).

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 int a; 
 int b; 
 int sub; 
 clrscr(); 
 printf("Enter value of a: "); 
 scanf("%d",&a); 
 printf("\n Enter value of b: "); 
 scanf("%d",&b); 
 sub = a - b; 
 printf("\n %d - %d = %d",a,b,sub); 
 getch(); 
}

See Output

* is used to multiply two values(variable).

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 int a;
 int b;
 int mul;
 clrscr();
 printf("Enter value of a: ");
 scanf("%d",&a);
 printf("\n Enter value of b: ");
 scanf("%d",&b);
 mul = a * b;
 printf("\n %d * %d = %d",a,b,mul);
 getch();
}

See Output

/ is used to divide two values(variable).

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 float a;
 float b;
 float div;
 clrscr();
 printf("Enter value of a: ");
 scanf("%f",&a);
 printf("\n Enter value of b: ");
 scanf("%f",&b);
 div = a / b;
 printf("\n %f / %f = %f",a,b,div);
 getch();
}

See Output

% is used to get remainder. It is called "modulus".

Program

#include <stdio.h> 
#include <conio.h> 
void main(){
 int a;
 int b;
 int rem;
 clrscr();
 printf("Enter value of a: ");
 scanf("%d",&a);
 printf("\n Enter value of b: ");
 scanf("%d",&b);
 rem = a % b;
 printf("\n remainder = %d",rem);
 getch();
}

See Output

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