3. Sınıf Matematik – 1.Ders – Doğal Sayılar

https://www.youtube.com/watch?v=vqUg4U5Ka5I&list=PLo6wDc6p7CcGJFDfH1N14ao30XxX5ERR0&index=18

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

https://youtu.be/D1BrUVugla8

https://youtu.be/N_jHD-4h0H4

https://youtu.be/FlhFsOTpM3k

https://www.youtube.com/watch?v=tEp4pk7-BZM