diff --git a/README.md b/README.md
index 938cdca..4742fa6 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,6 @@
 71 - 32 = 39
 24 / 8 = 3
 55 / 10 = 5
-93 - 2 = 91
 11 - 48 = -37
 38 + 93 = 131
 10 - 49 = -39