diff --git a/README.md b/README.md
index 591b6f7..c7d7e72 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,6 @@
 42 - 38 = 4
 20 * 12 = 240
 30 - 41 = -11
-58 - 77 = -19
 68 - 37 = 31
 83 - 24 = 59
 26 / 7 = 3