Simple arithmetic

Computers are good at math, that’s why they were created, and we can do all kinds of mathematical operations in python. We can add, subtract and multiply values.

sum = 2 + 2 # Addition
difference = 100 - 24.2 # Subtraction
product = 5 * 24 # Multiplication
quotient = 20 / 2 # Division

Here’s a list of all the arithmetic operators in python:

Operator	Operation	Description
`+`	Addition	Adds two values
`-`	Subtraction	Subtract one value from another
`*`	Multiplication	Multiply two values
`/`	Division	Divides two values
`//`	Floor division	Divides and rounds down to the nearest integer
`%`	Modulus	Returns the remainder after division
`**`	Exponentiation	Raise a number to a power

Assignment operators

When performing arithmetic on a variable you’ll need to reassign that variable to the new value.

count = 0
count = count + 1
count = count + 1
print(count)

Assignment operators are a shorthand, just add an equal sign after the operator to reassign the variable to the new value.

count = 0
count += 1
count += 2
print(count)