diff --git a/index.js b/index.js
index e69de29bb2..bb10bb48ca 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,32 @@
+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 inc(n){
+  return n += 1;
+}
+function dec(n){
+  return n -= 1;
+}
+function makeInt(n) {
+  return parseInt(n,10 );
+}
+function preserveDecimal(n) {
+  return parseFloat(n);
+}
+
+function increment(n) {
+  return n += 1
+}
+
+function decrement(n) {
+  return n -= 1
+}
\ No newline at end of file