diff --git a/README.md b/README.md
index f5d1171..df31dc0 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,4 @@
 32 - 66 = -34
 33 / 5 = 6
 84 / 6 = 14
+94 - 31 = 63