diff --git a/CoreWords.tl b/CoreWords.tl
index 3d5e870..2c17349 100644
--- a/CoreWords.tl
+++ b/CoreWords.tl
@@ -1,6 +1,19 @@
 local Dict = require("Dictionary")
 local Stack = require("Stack")
 
+function add(stack: Stack)
+  local a: any =stack:pop()
+  local b: any=stack:pop()
+  if a is number and b is number then
+    local c=a+b
+    stack:push(c)
+  else
+    error("invalid operands for add operation!")
+  end
+end
+function dot(s: Stack)
+	print(s:pop())
+end