diff --git a/src/main/java/com/example/math/Calculator.java b/src/main/java/com/example/math/Calculator.java
index c0978bb..5e4fd57 100644
--- a/src/main/java/com/example/math/Calculator.java
+++ b/src/main/java/com/example/math/Calculator.java
@@ -10,4 +10,9 @@ public int subtract(int a, int b) {
         return a - b;
     }
 
+    public int multiply(int a, int b) {
+        return a * b;
+    }
+
+
 }
diff --git a/src/test/java/com/example/math/TestCalculator.java b/src/test/java/com/example/math/TestCalculator.java
index 2e06237..276c6b7 100644
--- a/src/test/java/com/example/math/TestCalculator.java
+++ b/src/test/java/com/example/math/TestCalculator.java
@@ -17,4 +17,10 @@ public void subtract() {
         assertEquals(2, calculator.subtract(8, 6));
     }
 
+    @Test
+    public void multiply() {
+        Calculator calculator = new Calculator();
+        assertEquals(20, calculator.multiply(10, 2));
+    }
+
 }