<script>

var x = 4 + 4;

</script>

The value of the x variable here would be 8.

We have already used an operator in the previous exercise. When you assigned the variable, you made use of the assignment operator ‘=’.

Arithmetic operators

There are many different operators available to us. The arithmetic-based operators are as follows:

• + Addition. Adds numbers together.
• - Subtraction. Subtracts numbers from one another.
• Multiplication. Multiplies numbers together.
• / Division. Divides numbers from each other.
• % Modulus. Returns the remainder left after a division. For example, 10% 3 would be 1 because 3 * 3 gets you to 9, leaving the remainder 1 to get to 10.
• ++ Increment. This will add 1 to your number.
• – Decrement. This will subtract 1 from your number.

We can combine any number of these together to form an output, like so: