document.write("<table align='center'>");
for (let i = 1; i <= 9; i++){
    
    
     document.write("<tr>");
     for(let j = 1; j <= i; j++){
    
    
         document.write("<td>");
         document.write(i + "x" + j + "=" + (i * j)+ "&nbsp&nbsp&nbsp");
         document.write("</td>");
    }
    document.write("</tr>");
}
document.write("</table>");