diff --git a/README.md b/README.md
index e037f77..cf454d3 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,6 @@
 73 - 80 = -7
 42 - 38 = 4
 20 * 12 = 240
-68 - 37 = 31
 83 - 24 = 59
 26 / 7 = 3
 57 / 4 = 14