
<!DOCTYPE html>
<html>
<body>

<?php
$x=10; 
$y=6;

echo ($x + $y);
echo "<br>";
echo ($x - $y);
echo "<br>";
echo ($x * $y);
echo "<br>";
echo ($x / $y); 
echo "<br>";
echo ($x % $y); 
?>   

</body>
</html>