حل فعالیت 2 و 3 ص 14

12:10

5:54

4:11

14:14

2:01

4:04

10:38

12:32

47:32

3:16

7:24

2:26

7:13

6:51

7:15

8:47

15:41

1:17:50

7:34

7:34

3:43

7:48

2:42

4:42

10:29

14:43

3:47

4:31

5:55

1:40

3:53

5:22

10:38

49:31

10:33

19:43

55:52

3:58

12:10

4:37