diff --git a/README.md b/README.md
index 89585ab..5d33e3f 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@
 55 * 76 = 4180
 77 / 8 = 9
 84 - 73 = 11
+8 - 73 = -65