تدریس عدد اول ریاضی هفتم

21:21

7:23

21:55

27:13

4:53

13:27

3:55

6:11

16:23

18:08

10:46

31:26

18:55

7:55

18:02

17:10

17:27

7:55

24:19

28:54

3:10

13:25

20:18

3:07

5:21

14:57

6:08

2:18

16:07

17:06

30:55

31:08

21:01

22:53

15:59

17:38

28:20

9:19

4:27

6:09