Ordered Multiplication Tables
for the Number 2

Please set a maximum time for each problem
and then click "Start".

seconds

1

x 2

1

2

3

4

2

x 2

3

4

5

6

3

x 2

5

6

7

8

2

x 4

6

7

8

9

5

x 2

7

8

9

10

2

x 6

11

12

13

14

2

x 7

14

15

16

17

8

x 2

16

17

18

19

2

x 9

15

16

17

18

2

x 10

18

19

20

21

11

x 2

21

22

23

24

12

x 2

23

24

25

26