operationsonrealnumbersclass9

1:13

3:38

14:58

5:32

41:54

6:32

13:29

20:06

2:41

2:41

2:03:41

1:52

5:40

31:07

32:31

10:22

7:20

8:22

3:09

10:39

5:46

5:15

4:37

4:25

2:56

3:37

7:46

3:57

7:28

13:48

4:41

4:39

6:24

9:33

36:50

10:55

3:36

4:21

1:56

45:53