diff --git a/README.md b/README.md
index 1e2aeb1..fb6e38e 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,6 @@
 28 - 56 = -28
 62 + 15 = 77
 82 + 35 = 117
-10 - 41 = -31
 80 / 4 = 20
 47 / 8 = 5
 25 / 3 = 8