build simple calculator using python code example

Example 1: simple python calculator

#Store number variables for the two numbers

num1 = input('Enter first number: ')
num2 = input('Enter second number: ')

#the sum of the two numbers variable
sum = float(num1) + float(num2)
sum2 = float(num1) - float(num2)
sum3 = float(num1) * float(num2)
sum4 = float(num1) / float(num2)

#what operator to use
choice = input('Enter an operator, + = addition, - = subtraction, * = multiplication and / = division: ')
#different sums based on the operators
if choice == '+':
  print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))

  if choice == '-':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum2))

if choice == '*':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum3))

if choice == '/':
    print('The sum of {0} and {1} is {2}'.format(num1, num2, sum4))

Example 2: simple calculator in python

#Simple Calculator Program in Python by Rupesh Singh

def sum1(first_input, second_input):    # Sum function "+"
    result1 = first_input + second_input
    print("Your Answer is:-", result1)
    return

def minus(first_input, second_input):    # Minus function "-"
    result2 = first_input - second_input
    print("Your Answer is:-", result2)
    return

def multi(first_input, second_input):    # Multiplication function "*"
    result3 = first_input * second_input
    print("Your Answer is:-", result3)
    return

def div(first_input, second_input):    # Division function "/"
    result4 = first_input / second_input
    result4 = float(round(result4))
    print("Your Answer is:-", result4)
    return

# User Input
first_input = int(input("Enter your 1st Input:- "))
command = input("What you want to do (+, -, *, /):- ")
second_input = int(input("enter your 2nd Input:- "))

if command == "+":
    sum1(first_input, second_input)
elif command == "-":
    minus(first_input, second_input)
elif command == "*":
    multi(first_input, second_input)
elif command == "/":
    div(first_input, second_input)
else:
    print("Command Error!")