diff --git a/calculator.py b/calculator.py
new file mode 100644
index 0000000..1a88080
--- /dev/null
+++ b/calculator.py
@@ -0,0 +1,5 @@
+def add(a,b):
+  return a+b
+
+def subtract(a,b)
+  return a-b
\ No newline at end of file