Arithmetic Operators in C


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The following table shows all the arithmetic operators supported by the C language. Assume variable A holds 10 and variable B holds 20, then −

Operator Description Example
+ Adds two operands. A + B = 30
Subtracts second operand from the first. A − B = 10
Multiplies both operands. A ∗ B = 200
Divides numerator by de-numerator. B ∕ A = 2
% Modulus Operator and remainder of after an integer division. B % A = 0
++ Increment operator increases the integer value by one. A++ = 11
-- Decrement operator decreases the integer value by one. A-- = 9

Example

Try the following example to understand all the arithmetic operators available in C −

#include <stdio.h>

main() {

   int a = 21;
   int b = 10;
   int c ;

   c = a + b;
   printf("Line 1 - Value of c is %d\n", c );
	
   c = a - b;
   printf("Line 2 - Value of c is %d\n", c );
	
   c = a * b;
   printf("Line 3 - Value of c is %d\n", c );
	
   c = a / b;
   printf("Line 4 - Value of c is %d\n", c );
	
   c = a % b;
   printf("Line 5 - Value of c is %d\n", c );
	
   c = a++; 
   printf("Line 6 - Value of c is %d\n", c );
	
   c = a--; 
   printf("Line 7 - Value of c is %d\n", c );
}

When you compile and execute the above program, it produces the following result −

Line 1 - Value of c is 31
Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
Line 5 - Value of c is 1
Line 6 - Value of c is 21
Line 7 - Value of c is 22

c_operators.htm

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