mental multiplication tricks

6:10

5:13

10:50

10:43

7:06

10:05

3:37

2:40

3:37

11:05

13:57

4:33

4:33

8:38

4:36

5:05

5:38

27:03

5:10

2:51

2:51

6:44

11:55

کوتاه

26:08

9:50

5:16

8:39

12:39

11:28

22:00

22:32

13:39

6:54

6:54

2:19

47:44

2:08

12:49

15:06