diff --git a/README.md b/README.md
index 58e64f0..cef41bd 100644
--- a/README.md
+++ b/README.md
@@ -9,4 +9,6 @@
 - 4 + 20 = 
 - 1 - 5 = 
 - 50 + 60 =
-- 200 - 100 =
\ No newline at end of file
+- 200 - 100 =
+- 600 - 400 =
+- 90 + 40 = 
\ No newline at end of file