Somar 2 nĂºmeros com js dentro de body

<!DOCTYPE html> <html> <head> <meta charset=utf-8> </head> <body> <h2>Somar 2 nĂºmeros com js dentro de body</h2> <p id="exemplo"></p> <script> document.getElementById("exemplo").innerHTML=5+5; </script> </body> </html>