4. Sınıf Matematik – Parantezli Çarpma İşlemi ve 10,100 ve Bin Katlarıyla Kısayoldan Çarpma

https://www.youtube.com/watch?v=NWBSgH4hCOQ

https://www.youtube.com/watch?v=z5iXZ5A2FDc

https://www.youtube.com/watch?v=_gk8uNFcgcU&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=23

https://youtu.be/O9-zGdR-MOM

https://youtu.be/PeZNS_5mgOo

https://youtu.be/sPI3mIhJHXg