diff --git a/README.md b/README.md
index 0bd0e47..8e388de 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,6 @@
 87 + 39 = 126
 64 * 11 = 704
 83 + 17 = 100
-37 - 58 = -21
 20 - 52 = -32
 25 + 25 = 50
 86 + 61 = 147