diff --git a/README.md b/README.md
index 8736396..2cae2b4 100644
--- a/README.md
+++ b/README.md
@@ -17,3 +17,4 @@
 33 + 65 = 98
 46 + 95 = 141
 58 / 4 = 14
+27 - 80 = -53