# Python 3 - Arithmetic Operators Example

Assume variable a holds the value 10 and variable b holds the value 20, then −

Operator Description Example
+ Addition Adds values on either side of the operator. a + b = 31
- Subtraction Subtracts right hand operand from left hand operand. a – b = -11
* Multiplication Multiplies values on either side of the operator a * b = 210
/ Division Divides left hand operand by right hand operand b / a = 2.1
% Modulus Divides left hand operand by right hand operand and returns remainder b % a = 1
** Exponent Performs exponential (power) calculation on operators a**b =10 to the power 20
// Floor Division - The division of operands where the result is the quotient in which the digits after the decimal point are removed. But if one of the operands is negative, the result is floored, i.e., rounded away from zero (towards negative infinity): 9//2 = 4 and 9.0//2.0 = 4.0, -11//3 = -4, -11.0//3 = -4.0

## Example

Assume variable a holds the value 10 and variable b holds the value 20, then −

```#!/usr/bin/python3

a = 21
b = 10
c = 0

c = a + b
print ("Line 1 - Value of c is ", c)

c = a - b
print ("Line 2 - Value of c is ", c )

c = a * b
print ("Line 3 - Value of c is ", c)

c = a / b
print ("Line 4 - Value of c is ", c )

c = a % b
print ("Line 5 - Value of c is ", c)

a = 2
b = 3
c = a**b
print ("Line 6 - Value of c is ", c)

a = 10
b = 5
c = a//b
print ("Line 7 - Value of c is ", c)
```

## Output

When you 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  8
Line 7 - Value of c is  2
```
python_basic_operators.htm