# Python Program to Add Two Numbers

#### In this program, you will learn to add two numbers and display it using print() function.

In the program below, we’ve used the `+` operator to add two numbers.

## Example 1: Add Two Numbers

``````# This program adds two numbers

num1 = 1.5
num2 = 6.3

sum = num1 + num2

# Display the sum
print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))
``````

Output

`The sum of 1.5 and 6.3 is 7.8`

The program below calculates the sum of two numbers entered by the user.

## Example 2: Add Two Numbers With User Input

``````# Store input numbers
num1 = input('Enter first number: ')
num2 = input('Enter second number: ')

sum = float(num1) + float(num2)

# Display the sum
print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))
``````

Output

```
Enter first number: 1.5
Enter second number: 6.3
The sum of 1.5 and 6.3 is 7.8```

In this program, we asked the user to enter two numbers and this program displays the sum of two numbers entered by user.

We use the built-in function `input()` to take the input. Since, `input()` returns a string, we convert the string into number using the `float()` function. Then, the numbers are added.

Alternative to this, we can perform this addition in a single statement without using any variables as follows.

``````print('The sum is %.1f' %(float(input('Enter first number: ')) + float(input('Enter second number: '))))
``````
Although this program uses no variable (memory efficient), it is harder to read.

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