diff --git a/nodejs/main.js b/nodejs/main.js
new file mode 100644
index 00000000..299490c3
--- /dev/null
+++ b/nodejs/main.js
@@ -0,0 +1,7 @@
+let m = require('./math-tools');
+
+console.log(m.PI);
+console.log(m.add(1,2));
+console.log(m.subtract(1,2));
+console.log(m.multiply(1,2));
+console.log(m.divide(1,2));
\ No newline at end of file
diff --git a/nodejs/math-tools.js b/nodejs/math-tools.js
new file mode 100644
index 00000000..2fd2305f
--- /dev/null
+++ b/nodejs/math-tools.js
@@ -0,0 +1,9 @@
+let calculator = {
+  PI : 3.14,
+  add : (a, b) => a + b,
+  subtract : (a, b) => a - b,
+  multiply : (a, b) => a * b,
+  divide : (a, b) => a / b
+}
+
+module.exports = calculator;
\ No newline at end of file
diff --git a/nodejs/test.js b/nodejs/test.js
new file mode 100644
index 00000000..125fcd0d
--- /dev/null
+++ b/nodejs/test.js
@@ -0,0 +1 @@
+console.log('Hello Node.js')
\ No newline at end of file