diff --git a/README.md b/README.md
index 87381a3..5ea1fa7 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,4 @@
 99 * 85 = 8415
 90 - 36 = 54
 16 * 15 = 240
+20 + 3 = 23