@@ -10,7 +10,7 @@
     <form class="calc" name="calculator">
         <table>
            <tr>
-              <td colspan="4">
+              <td colspan="5">
                  <input type="text" name="display" id="display" disabled>
 
               </td>
@@ -20,27 +20,30 @@
                  <td><input type="button" name="two" value="2" onclick="calculator.display.value += '2'"></td>
                  <td><input type="button" name="three" value="3" onclick="calculator.display.value += '3'"></td>
                  <td><input type="button" class="operator" name="plus" value="+" onclick="calculator.display.value += '+'"></td>
+                 <td><input type="button" class="operator" name="power" value="**" onclick="calculator.display.value += '**'"></td>
           </tr>
           <tr>
                  <td><input type="button" name="four" value="4" onclick="calculator.display.value += '4'"></td>
                  <td><input type="button" name="five" value="5" onclick="calculator.display.value += '5'"></td>
                  <td><input type="button" name="six" value="6" onclick="calculator.display.value += '6'"></td>
                  <td><input type="button" class="operator" name="minus" value="-" onclick="calculator.display.value += '-'"></td>
+                 <td><input type="button" class="operator" name="" value="-" onclick="calculator.display.value += '-'"></td>
           </tr>
           <tr>
                  <td><input type="button" name="seven" value="7" onclick="calculator.display.value += '7'"></td>
                  <td><input type="button" name="eight" value="8" onclick="calculator.display.value += '8'"></td>
                  <td><input type="button" name="nine" value="9" onclick="calculator.display.value += '9'"></td>
                  <td><input type="button" class="operator" name="times" value="x" onclick="calculator.display.value += '*'"></td>
+                 <td><input type="button" class="operator" name="div" value="/" onclick="calculator.display.value += '/'"></td>
           </tr>
           <tr>
                  <td><input type="button" id="clear" name="clear" value="c" onclick="calculator.display.value = ''"></td>
                  <td><input type="button" name="zero" value="0" onclick="calculator.display.value += '0'"></td>
+                 <td><input type="button" name="zero" value="." onclick="calculator.display.value += '.'"></td>
                  <td><input type="button" name="doit" value="=" onclick="calculator.display.value = eval(calculator.display.value)"></td>
-                 <td><input type="button" class="operator" name="div" value="/" onclick="calculator.display.value += '/'"></td>
-           
+                 <td><input type="button" name="zero" value="%" onclick="calculator.display.value += '/100*'"></td>
            </tr>
         </table>
      </form>
 </body>
-</html>
+</html>