Python Program to Add Two Numbers

28 July 2024

1

Given two numbers num1 and num2. The task is to write a Python program to find the addition of these two numbers.

Examples:

Input: num1 = 5, num2 = 3
Output: 8
Input: num1 = 13, num2 = 6
Output: 19

Simple program to add two numbers

Here num1 and num2 is a variable and we are going to add the both variable with + operator.

Python3

# Python3 program to add two numbers
num1 = 15
num2 = 12
 
# Adding two nos
sum = num1 + num2
 
# printing values
print("Sum of", num1, "and", num2 , "is", sum)

Output:

Sum of 15 and 12 is 27

Adding two numbers with user input

In the below program to add two numbers in Python, the user is first asked to enter two numbers, and the input is scanned using the Python input() function and stored in the variables number1 and number2. Then, the variable’s number1 and number2 are added using the arithmetic operator +, and the result is stored in the variable sum.

Python3

# Python3 program to add two numbers
 
number1 = input("First number: ")
number2 = input("\nSecond number: ")
 
# Adding two numbers
# User might also enter float numbers
sum = float(number1) + float(number2)
 
# Display the sum
# will print value in float
print("The sum of {0} and {1} is {2}" .format(number1,
                                            number2, sum))

Output:

First number: 13.5 Second number: 1.54
The sum of 13.5 and 1.54 is 15.04

Defining add function and returning the result

Python3

#To define a function that take two integers
# and return the sum of those two numbers
def add(a,b):
  return a+b
 
#initializing the variables
num1 = 10
num2 = 5
 
#function calling and store the result into sum_of_twonumbers
sum_of_twonumbers = add(num1,num2)
 
#To print the result
print("Sum of {0} and {1} is {2};" .format(num1,
                           num2, sum_of_twonumbers))

Output

Sum of 10 and 5 is 15;

Add two numbers in Python using operator.add() method

Initialize two variables num1, and num2. Find sum using the operator.add() by passing num1, and num2 as arguments and assign to su. Display num1,num2 and su

Python3

# Python3 program to add two numbers
 
num1 = 15
num2 = 12
 
# Adding two nos
import operator
su = operator.add(num1,num2)
 
# printing values
print("Sum of {0} and {1} is {2}" .format(num1,
                                       num2, su))

Output

Sum of 15 and 12 is 27

Adding two number using lambda function

Here we are going to use Python Lambda function for adding two number with Python

Python3

# Define a lambda function to add two numbers
add_numbers = lambda x, y: x + y
 
# Take input from the user
num1 = 1
num2 = 2
 
# Call the lambda function to add the two numbers
result = add_numbers(num1, num2)
 
# Print the result
print("The sum of", num1, "and", num2, "is", result)

Output:

The sum of 1 and 2 is 3