speed in maths

10:41

13:15

13:52

28:22

18:58

18:38

20:01

32:10

3:48

17:21

8:42

7:52

35:48

26:37

10:16

4:42

19:10

2:02

1:02:04

5:59

11:46

7:25:02

11:15

13:12

8:03

5:18

14:19

8:48

1:50

7:03

8:05

3:24

10:21

6:27

10:25

8:00

2:45:52

1:57:46

5:16

2:58

24:47

19:22

5:49

9:50

5:42

3:45

46:46

4:06

52:03

1:00:30

10:42

1:21:31

3:38

10:44

33:02

4:47

31:22

31:26

24:37

11:34