diff --git a/calculator.py b/calculator.py
new file mode 100644
index 0000000..02ead1a
--- /dev/null
+++ b/calculator.py
@@ -0,0 +1,8 @@
+def add(a, b):
+    return a + b
+
+def subtract(a, b):
+    return a - b
+
+print("Addition:", add(10, 5))
+print("Subtraction:", subtract(10, 5))
\ No newline at end of file