diff --git a/README.md b/README.md
index 5a13e70..88131e8 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,6 @@
 86 + 61 = 147
 88 + 70 = 158
 55 / 10 = 5
-11 - 48 = -37
 38 + 93 = 131
 29 - 5 = 24
 28 - 56 = -28