test.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <script>
        var table = document.createElement('table');
        for (var i = 1; i < 10; i++) {
            var row = table.insertRow();
            for (var j = i; j < 10; j++) {
                console.log(i + '*' + j + '=' + i * j);
                var cell = row.insertCell();
                cell.innerText=i + '*' + j + '=' + i * j + '';
                cell.style.width =100+'px';
                cell.style.border = '1px solid red';
            }
            console.log('\n');
        }
        document.body.appendChild(table);
    </script>
</body>

</html>