## Practice With Arithmetic Operators

Practice these programming examples to internalize these concepts.

### 3. Addition and Subtraction

In Python, addition and subtraction operators perform just as they do in mathematics. In fact, you can use the Python programming language as a calculator.

Let's look at some examples, starting with integers:

print(1 + 5)

Output:

`6`

Instead of passing integers directly into the `print`

statement, we can initialize variables to stand for integer values:

a = 88 b = 103 print(a + b)

Output:

`191`

Because integers can be both positive and negative numbers (and 0 too), we can add a negative number with a positive number:

c= -36 d = 25 print(c + d)

Output:

-11

Addition will behave similarly with floats:

e = 5.5 f = 2.5 print(e + f)

Output:

`8.0`

Because we added two floats together, Python returned a float value with a decimal place.

The syntax for subtraction is the same as for addition, except you'll change your operator from the plus sign (`+`

) to the minus sign (`-`

):

g = 75.67 h = 32 print(g - h)

Output:

`43.67`

Here, we subtracted an integer from a float. Python will return a float if at least one of the numbers involved in an equation is a float.