## JavaScript Numbers

Number can be written with or without decimals.

## JavaScript Strings

Strings can be written with double or single quotes.

## JavaScript Operators

JavaScript uses arithmetic operators to compute values (just like algebra).

## JavaScript Variables

In this example, x, y, and z are variables.

## JavaScript Operators

x = 5, y = 2, calculate z = x + y, and display z:

A typical arithmetic operation takes two numbers and produces a new number.

A typical arithmetic operation takes two numbers (or expressions) and produces a new number.