diff --git a/README.md b/README.md
index 6334de8..e4b2bf0 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@
 68 * 83 = 5644
 77 / 7 = 11
 93 - 66 = 27
+36 - 88 = -52