diff --git a/ex1/ex1_multi.py b/ex1/ex1_multi.py
index e635b09..478bd83 100644
--- a/ex1/ex1_multi.py
+++ b/ex1/ex1_multi.py
@@ -80,7 +80,9 @@
 print theta
 
 # Estimate the price of a 1650 sq-ft, 3 br house
-price = np.array([1,3,1650]).dot(theta)
+house = np.array([1650, 3])
+house = (house - mu) / sigma
+price = np.hstack((1, house)).dot(theta)
 
 print 'Predicted price of a 1650 sq-ft, 3 br house'
 print '(using gradient descent): '
@@ -119,7 +121,7 @@
 print ' %s \n' % theta
 
 # Estimate the price of a 1650 sq-ft, 3 br house
-price = np.array([1, 3, 1650]).dot(theta)
+price = np.array([1, 1650, 3]).dot(theta)
 
 # ============================================================