Public/logarithms2.html at master · drewsday/Public · GitHub

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
  <title>Math Practice</title>
  <style type="text/css">
  h1 {
    text-align: center;
    font-family: Sans-Serif;
    font-weight: bold;
    font-size: 36px;
    margin: 20px 0 0 0;
    padding: 0;
  }
  #whole {
    margin-left: auto;
    margin-right: auto;
  }
  table.problem {
    font-family: Sans-Serif;
    font-size: 24px;
    text-align: right;
/*    border-bottom: solid; */
    margin: 40px;
  }
  </style>
  <script>
  function single_problem() {
    var operator = "&times;";  //&#215;
    var top = Math.floor(Math.random()*90 + 10);
    var bottom = Math.floor(Math.random()*8 + 2);
    return '<table class="problem">' +
                   '<tr><td></td><td>10<sup>n</sup> = ' + top + '</td></tr>' +
                   '</table>';
  }
  </script>
</head>
<body>
  <h1>Math Practice</h1>
  <table id="whole">
    <script>
    for (i=0; i<5; i++){
      document.write("<tr>");
      for (j=0; j<5; j++) {
        document.write('<td>' + single_problem() + '</td>');
      }
      document.write('</tr>');
    }
    </script>
  </table>

</body>
</html>