diff --git a/index.js b/index.js
index e69de29..8ccc2b8 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 += 1
+}
+function dec(n){
+  return n -= 1
+}
+function makeInt(n){
+  return parseInt(n, 10)
+}
+function preserveDecimal(n){
+  return parseFloat(n)
+}