3. Sınıf Yeni Nesil Matematik 14. Ders Toplama-Çıkarma İşlemini Gerektiren Problemler

https://youtu.be/OglzYPqEZBU

https://youtu.be/ExILUmWCX5Y

https://www.youtube.com/watch?v=XGvIwQ4_jMA&list=PL9Xy-Y4LnxAbJbflEw7MbtEgYhHSDFRL7

https://youtu.be/IUzv0ADMdiA

https://www.youtube.com/watch?v=3BKiqXG91cs

https://youtu.be/aQ7G_J-9PV4