<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JavaScript Number Data Type</title>
</head>
<body>
<script>
// Creating variables
var a = 12;
var b = 30.5;
var c = 6.25e+6;
var d = 9.25e-6;
// Printing variable values
document.write(a + "<br>");
document.write(b + "<br>");
document.write(c + "<br>");
document.write(d);
</script>
</body>
</html>