From fb5a74742621f6ca45ccbafd9c3215fe48789212 Mon Sep 17 00:00:00 2001
From: THINH NGUYEN <thinhnguyen74@gmail.com>
Date: Sun, 21 Jan 2018 00:04:06 +0000
Subject: [PATCH] Done.

---
 index.js | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/index.js b/index.js
index e69de29..5763e9f 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)
+}
+