diff --git a/index.js b/index.js
index e69de29..30f389a 100644
--- a/index.js
+++ b/index.js
@@ -0,0 +1,24 @@
+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
+}
+function dec(n) {
+  return --n
+}
+function makeInt(n) {
+  return parseInt(n,10)
+}
+function preserveDecimal(n) {
+  return parseFloat(n)
+}
\ No newline at end of file