Python Program For Simple Calculator

Here we are going to implement an easy simple calculator program in Python. We are going to implement Addition, Subtraction, Multiplication, and Division.

To understand this example, you should have knowledge of following Python programming topics:

• Python – If…Else Condition
• Python – Function
• Python – Operators

When you execute the program it will ask for entering choice and according to choice, it will do the calculation.

Source Code For Simple Calculator in Python

# Simple Calculator for Add, Sub, Mul and Div
# StudyGyaan.com

def Addition (num1,num2):
   return num1+num2

def Substraction (num1,num2):
   return num1-num2

def Multiplication (num1,num2):
   return num1*num2

def Division (num1,num2):
   return num1/num2

print("Enter two number for calculation")

num1 = int(input("Enter a number1: "))
num2 = int(input("Enter a number2: "))

print("Enter your choice \n 1. Addition \n 2. Substraction \n 3. Multiplication \n 4.Division")
choice = int(input())

if choice == 1:
   #Addition
   print("Addition",Addition(num1,num2))
elif choice ==2:
   #Substraction
   print("Substraction",Substraction(num1,num2))
elif choice ==3:
   #Multiplication
   print("Multiplication",Multiplication(num1,num2))
elif choice == 4:
   #Division
   print("Division",Division(num1,num2))

It’s also available on GitHub: https://github.com/studygyaan/python-tutorial/blob/master/python-simple-calculator.py