The primary math operators

Operator	Meaning	Example
+	Addition	4 + 5	Multiplication, addition and subtraction work as you would expect.
-	Subtraction	7 - 2
*	Multiplication	12 * 6
/	Division	48 / 12	Division with doubles gives you a decimal answer, e.g. 25.0 / 4.0 = 6.25 Integer division is a little different from everyday division because of the fact that computers can lose information due to precision constraints. For example, when you divide 27 by 5, the result is a real number (a number with a decimal component). Integers don't have a decimal component (or a fraction component) and so the "remainder" is discarded. The division of two integers like 27 divided by 5 will result in an answer of 5. The ".4" gets discarded.
%	Modulus	12 % 5	The modulus operator tells you the remainder after an integer division. To find the remainder of the division of two integers like 27 divided by 5, you would use the modulus division operator %.You would do this by calculating 27 modulus 5 (27 % 5) and you would get the result 2.

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