<script>
var num = 8
document.write("tabla del " + num );
document.write("<br>");
document.write("<br>");
document.write(num + "por 1 es " + num * 1 + "<br>");
document.write(num + "por 2 es " + num * 2 + "<br>");
document.write(num + "por 3 es " + num * 3 + "<br>");
document.write(num + "por 4 es " + num * 4 + "<br>");
document.write(num + "por 5 es " + num * 5 + "<br>");
document.write(num + "por 6 es " + num * 6 + "<br>");
document.write(num + "por 7 es " + num * 7 + "<br>");
document.write(num + "por 8 es " + num * 8 + "<br>");
document.write(num + "por 9 es " + num * 9 + "<br>");
document.write(num + "por 10 es " + num * 10 + "<br>");
</script>
