diff --git a/calc.py b/calc.py
new file mode 100644
index 0000000..7ee7f06
--- /dev/null
+++ b/calc.py
@@ -0,0 +1,8 @@
+def add(a,b)
+return a+b;
+
+def substract(a,b)
+return a-b;
+
+def multoply(a,b)
+return a*b;