diff --git a/index.js b/index.js
index e69de29bb..67edf0ab6 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,14 @@
+function add (a,b) { return a + b; }
+function subtract (a,b) { return a - b; }
+function multiply (a,b) { return a * b; }
+function divide (a,b) { return a / b; }
+
+function increment(n) { 
+  n++;
+  return n; }
+function decrement(n) { 
+  n--; 
+  return n; }
+  
+function makeInt(string) { return parseInt(string,10); }
+function preserveDecimal(string) { return parseFloat(string); }