diff --git a/README.md b/README.md
index f0ba897..c24f7fb 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@
 34 / 5 = 6
 72 + 85 = 157
 67 / 5 = 13
+68 - 63 = 5