diff --git a/README.md b/README.md
index 35967c3..84513fc 100644
--- a/README.md
+++ b/README.md
@@ -24,3 +24,4 @@
 57 / 7 = 8
 51 / 3 = 17
 15 - 32 = -17
+97 - 61 = 36