diff --git a/calculator.html b/calculator.html
index 83f569b..e7fd4f0 100644
--- a/calculator.html
+++ b/calculator.html
@@ -85,6 +85,9 @@
             grid-gap: 20px;
             padding: 20px;
         }
+        button{
+            background-color: #c4c4c4;
+        }
     </style>
 </head>
 
diff --git a/task.js b/task.js
index afea252..dfc9a98 100644
--- a/task.js
+++ b/task.js
@@ -11,6 +11,10 @@ const performCalculation = {
 
     '-': (firstOperand, secondOperand) => firstOperand - secondOperand,
 
+    '*': (firstOperand, secondOperand) => firstOperand * secondOperand,
+
+    '/': (firstOperand, secondOperand) => firstOperand / secondOperand,
+
     '=': (firstOperand, secondOperand) => secondOperand
 };