Someone

<html>
<body>
<?php

echo $_REQUEST['value'],"<br>";

$mynumber = $_REQUEST['value'] * 10;

echo "<a href='cal.php?value=", $mynumber + 0,"'>0</a> ";
echo "<a href='cal.php?value=", $mynumber + 1,"'>1</a> ";
echo "<a href='cal.php?value=", $mynumber + 2,"'>2</a> ";
echo "<a href='cal.php?value=", $mynumber + 3,"'>3</a> ";
echo "<a href='cal.php?value=", $mynumber + 4,"'>4</a> ";
echo "<a href='cal.php?value=", $mynumber + 5,"'>5</a> ";
echo "<a href='cal.php?value=", $mynumber + 6,"'>6</a> ";
echo "<a href='cal.php?value=", $mynumber + 7,"'>7</a> ";
echo "<a href='cal.php?value=", $mynumber + 8,"'>8</a> ";
echo "<a href='cal.php?value=", $mynumber + 9,"'>9</a> ";


?>
</body>
</html>