diff --git a/index.js b/index.js
index 0b32465..71c803b 100644
--- a/index.js
+++ b/index.js
@@ -6,4 +6,8 @@ function subtract(a, b) {
   return a - b;
 }
 
-module.exports = { add, subtract };
+function multiply(a, b) {
+  return a * b;
+}
+
+module.exports = { add, subtract, multiply };
diff --git a/test.js b/test.js
index cef9a03..612a7eb 100644
--- a/test.js
+++ b/test.js
@@ -1,8 +1,9 @@
-const { add, subtract } = require("./index");
+const { add, subtract, multiply } = require("./index");
 
 const assert = require("assert");
 
 assert.strictEqual(add(1, 2), 3);
 assert.strictEqual(subtract(5, 3), 2);
+assert.strictEqual(multiply(3, 4), 12);
 
 console.log("All tests passed!");