diff --git a/README.md b/README.md
index 1ef9827..4e91ca1 100644
--- a/README.md
+++ b/README.md
@@ -35,3 +35,4 @@
 3 / 10 = 0
 74 / 8 = 9
 34 + 7 = 41
+69 - 22 = 47