We all know you can type arithmetical and mathematical queries into the address bar in a browser and get the result. If you've tried it in IE10 on your WP8 you may not have had much success. This is because IE tries to form an IP address from anything beginning with a number. All you need to do to prevent this is to use a non-numeric symbol as the first character. Unfortunately a space doesn't work but parentheses do. Use a "(" to start your query and close it somewhere, even right after the first term with a ")". The query is passed to Bing and you get the answer... Robert's your mother's brother. You can use a "+" sign if you like but that's on a different keyboard needing one extra tap, the parentheses are right there when you hit the number shift key