3. Sınıf Matematik – 1.Ders – Doğal Sayılar

https://youtu.be/-3aWChIn3og

https://youtu.be/RRCHYy4fdMw

https://www.youtube.com/watch?v=0Wyvs2K4Ya0&list=UUoWV0DS2JAYrM3wov5BvcvA&index=18

https://youtu.be/v41_tPmMhTI

https://youtu.be/bJtxOLf4WK8

https://www.youtube.com/watch?v=a1UvA8oItvg