Python Arithmetic operators include Addition, Subtraction, Multiplication, Division, Floor Division, Exponent (or Power), and Modulus. All these Arithmetic are binary operators, which means they operate on two operands. The below table shows all the Python Arithmetic Operators with examples.
| Operators | Operation | Example |
|---|---|---|
| + | Addition | 10 + 2 = 12 |
| – | Subtraction | 10 – 2 = 8 |
| * | Multiplication | 10 * 2 = 20 |
| / | Division | 10 / 2 = 5.0 |
| % | Modulus – It returns the remainder after the division | 10 % 2 = 0 (Here remainder is zero). If it is 10 % 3, then it will be 1. |
| ** | Exponent – It returns the Power of One variable against the other | 10 ** 2 = 100 (It means 10 Power 2 or 10²). |
| // | Floor Division – Same as Division, but it will return the integer value by flooring the extra decimals | 17 // 3 = 5. If you divide 17 by 3, you get 5.667. The floor division operator will trim the decimal values and outputs the integer. |
Python Arithmetic Operators Example
For this example, we use two variables, a and b, and their values are 12 and 3. We are going to use these two variables to perform various arithmetic operations.
a = 12
b = 3
addition = a+b
subtraction = a-b
multiplication = a*b
division = a / b
modulus = a % b
exponent = a**b
Floor_Division = a // b
print("Addition of two numbers 12 and 3 is : ", addition)
print("Subtracting Number 3 from 12 is : ", subtraction)
print("Multiplication of two numbers 12 and 3 is : ", multiplication)
print("Division of two numbers 12 and 3 is : ", division)
print("Modulus of two numbers 12 and 3 is : ", modulus)
print("Exponent of two numbers 12 and 3 is : ", exponent)
print("Floor Division of two numbers 12 and 3 is : ", Floor_Division)
The following Python statement will find the exponent. It means 12 power 3 = 12 * 12 * 12 = 1728
exponent = a ** b
When we are using the division ( / ) operator, the result will be a float or decimal value. If you want to display the output as an integer value by rounding the value, then use Floor Division ( // ).
Arithmetic Operations on Strings
In this Python Arithmetic operators example, we use two variables, a and b, of string data type. Next, we use these two variables to show the problems we generally face while performing arithmetic operations on String Data type.
a = "Tutorial" b = "Gateway" print(a + b) print(a + " " + b) print(a * 3) print((a + " ")* 3) print(a + 3) print(a + str(3))
TIP: Please be careful with brackets. If you misplace it, you will end up with the wrong results.
In this program for Arithmetic operators in python, First, We declared two variables, a and b of string data type, and their values are “Tutorial” and “Gateway”
a = "Tutorial" b = "Gateway"
It displays the output as “TutorialGateway” because when we use the ‘+’ operator in between string variables, the controller will concat the two strings.
print(a+b)
Inserts the empty space between the two words”Tutorial” and “Gateway”. It means the output will be “Tutorial Gateway”
print(a+ " " +b)
Displays Tutorial three times using one of the Python Arithmetic Operators *
print(a * 3)
Insert space in between each iteration
print((a + " ")* 3)
It is the interesting part because we are using the ‘+’ symbol between string and integer.
print(a + 3)
It will throw an error because it will not implicitly convert integer objects to string objects. To resolve this, we have to explicitly convert three. Be careful while Concating the String and Integers.
Type casting plays a major role in these arithmetic operators.
print(a + str(3))
