diff --git a/main.py b/main.py
index f77ea34..41896da 100644
--- a/main.py
+++ b/main.py
@@ -1,18 +1,22 @@
 def penjumlahan(a,b):
 	#isi fungsi penjumlahan diletakkan di variable total
+        total = a + b
 	return total
 
 def pengurangan(a,b):
 	#isi fungsi pengurangan diletakkan di variable total
-	return total
+	total = a - b
+        return total
 
 def perkalian(a,b):
 	#isi fungsi perkalian diletakkan di variable total 
-	return total
+	total = a * b
+        return total
 
 def pembagian(a,b):
 	#isi fungsi pembagian diletakkan di variable total
-	return total
+	total = a / b
+        return total
 
 def main():
 	print penjumlahan(5,5)