روش تدریس جمع و تفریق ه

6:03

6:02

5:00

8:35

11:25

23:38

7:56

2:17

5:00

1:23

3:51

8:27

13:19

14:19

13:37

7:42

9:57

2:59

2:27

14:36

1:39:34

4:10

13:44

11:21

19:43

19:23

19:28

24:23

3:31

2:33

15:00

4:03

1:51

7:46

4:05

35:31

12:39

10:06

12:37

2:31