4. Sınıf Matematik Zihinden Çıkarma İşlemi

https://www.youtube.com/watch?v=eZJHBkrY4vE

https://youtu.be/VvrGjnBw3Po

https://youtu.be/s8Pl44Nmqb4

https://youtu.be/BrFhYUPX7W8

https://www.youtube.com/watch?v=MhYf1hJdxug

https://www.youtube.com/watch?v=zz6tvBQGLQg&list=PL3oxhzRdQr1kr6jcAWJcT8yQrum_wGYkw&index=24