Edit in JSFiddle

//Learning Operators
var five = 5;
var ten = 10;
var hundred = 100;

console.log(hundred);
//same as doing hundred = hundred * five 
hundred *= five;
console.log(hundred);

//increment first then log
console.log(++five);

//log and then decrement
console.log(ten--);
//new value of ten after the decrement
console.log(ten);

//multiplication
console.log(five*ten);

//concatenate 
console.log("The variable 'five' equals to " + five);
<!-- Operators - #4 -->
<p>
Today we learn about operators in JavaScript. They're everywhere! 
</p>

<table border="1" style="width:100%">
  <tr>
    <td>++,  -- </td>
    <td>Increment and Decrement</td>		
  </tr>
  <tr>
    <td>!</td>
    <td>Logical Not</td>		
  </tr>
    <tr>
    <td>*, /, %</td>
    <td>Multiplication, Division, and Modulus</td>		
  </tr>
    <tr>
    <td>+, - </td>
    <td>Add (concatenate) and Subtract</td>		
  </tr>
    <tr>
    <td>==, !=, ===, !==</td>
    <td>Checks for Equality</td>		
  </tr>
    <tr>
    <td>&amp;&amp;</td>
    <td>And</td>		
  </tr>
    <tr>
    <td>||</td>
    <td>Or</td>		
  </tr>
    <tr>
    <td>=,  =+,  -=,  *=,  /=,  %=  </td>
    <td>Assignment operators</td>		
  </tr>
</table>
<br />
<span><a href="http://www.EasyProgramming.net">EasyProgramming.net</a></span>
table, tr, td{
  text-align: center;
  font-size: 18px;
}