diff --git a/playground/9-async-await.js b/playground/9-async-await.js
new file mode 100644
index 0000000..de36668
--- /dev/null
+++ b/playground/9-async-await.js
@@ -0,0 +1,24 @@
+const add = (a, b) => {
+  return new Promise((resolve, reject) => {
+    setTimeout(() => {
+      if (a < 0 || b < 0) {
+        return reject('Numbers must be non-negative')
+      }
+
+      resolve(a + b)
+    }, 2000)
+  })
+}
+
+const doWork = async () => {
+  const sum = await add(1, -99)
+  const sum2 = await add(sum, 50)
+  const sum3 = await add(sum2, -3)
+  return sum3
+}
+
+doWork().then((result) => {
+  console.log('result', result)
+}).catch((e) => {
+  console.log('e', e)
+})