4. Sınıf Matematik Beş Basamaklı Doğal Sayılar

https://youtu.be/J9j1kcf4BB4

https://youtu.be/-bQBYZYBoE8

https://www.youtube.com/watch?v=4CPV_6V9Zq8&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=14

https://www.youtube.com/watch?v=vvGyr_nBUx8&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=30

https://youtu.be/6gbx9BhUmFA

https://youtu.be/GVsUV5m7ZP8