diff --git a/README.md b/README.md
index 102b437..3800b90 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,5 @@
 39 - 24 = 15
 23 * 42 = 966
 33 * 1 = 33
-15 + 63 = 78
 14 * 32 = 448
 79 / 8 = 9