Though we have a Calculator bundled with Windows but today you will learn a trick which let you calculate numbers with in the Browsing Windows itself. Means you not need to open Calculator every time you have to calculate two numbers, for an easy calculation you only have to use simple javascript code in the address bar area of the any browser you use.

To get it done copy & paste javascript: alert suffix with the numbers you want to calculate with in brackets in address bar of your browser; for example look at the code below code

javascript: alert(5+5-2);

and hit enter, you will get a pop up message box displaying 8.

Note :- You can also change the value & operators as you wish..