구구단
1 x 1 = 2 1 x 2 = 3 1 x 3 = 4 1 x 4 = 5 1 x 5 = 6 1 x 6 = 7 1 x 7 = 8 1 x 8 = 9 1 x 9 = 10 1 x 10 = 11
2 x 1 = 3 2 x 2 = 4 2 x 3 = 5 2 x 4 = 6 2 x 5 = 7 2 x 6 = 8 2 x 7 = 9 2 x 8 = 10 2 x 9 = 11 2 x 10 = 12
3 x 1 = 4 3 x 2 = 5 3 x 3 = 6 3 x 4 = 7 3 x 5 = 8 3 x 6 = 9 3 x 7 = 10 3 x 8 = 11 3 x 9 = 12 3 x 10 = 13
4 x 1 = 5 4 x 2 = 6 4 x 3 = 7 4 x 4 = 8 4 x 5 = 9 4 x 6 = 10 4 x 7 = 11 4 x 8 = 12 4 x 9 = 13 4 x 10 = 14
5 x 1 = 6 5 x 2 = 7 5 x 3 = 8 5 x 4 = 9 5 x 5 = 10 5 x 6 = 11 5 x 7 = 12 5 x 8 = 13 5 x 9 = 14 5 x 10 = 15
6 x 1 = 7 6 x 2 = 8 6 x 3 = 9 6 x 4 = 10 6 x 5 = 11 6 x 6 = 12 6 x 7 = 13 6 x 8 = 14 6 x 9 = 15 6 x 10 = 16
7 x 1 = 8 7 x 2 = 9 7 x 3 = 10 7 x 4 = 11 7 x 5 = 12 7 x 6 = 13 7 x 7 = 14 7 x 8 = 15 7 x 9 = 16 7 x 10 = 17
8 x 1 = 9 8 x 2 = 10 8 x 3 = 11 8 x 4 = 12 8 x 5 = 13 8 x 6 = 14 8 x 7 = 15 8 x 8 = 16 8 x 9 = 17 8 x 10 = 18
9 x 1 = 10 9 x 2 = 11 9 x 3 = 12 9 x 4 = 13 9 x 5 = 14 9 x 6 = 15 9 x 7 = 16 9 x 8 = 17 9 x 9 = 18 9 x 10 = 19
10 x 1 = 11 10 x 2 = 12 10 x 3 = 13 10 x 4 = 14 10 x 5 = 15 10 x 6 = 16 10 x 7 = 17 10 x 8 = 18 10 x 9 = 19 10 x 10 = 20
11 x 1 = 12 11 x 2 = 13 11 x 3 = 14 11 x 4 = 15 11 x 5 = 16 11 x 6 = 17 11 x 7 = 18 11 x 8 = 19 11 x 9 = 20 11 x 10 = 21
12 x 1 = 13 12 x 2 = 14 12 x 3 = 15 12 x 4 = 16 12 x 5 = 17 12 x 6 = 18 12 x 7 = 19 12 x 8 = 20 12 x 9 = 21 12 x 10 = 22
13 x 1 = 14 13 x 2 = 15 13 x 3 = 16 13 x 4 = 17 13 x 5 = 18 13 x 6 = 19 13 x 7 = 20 13 x 8 = 21 13 x 9 = 22 13 x 10 = 23
14 x 1 = 15 14 x 2 = 16 14 x 3 = 17 14 x 4 = 18 14 x 5 = 19 14 x 6 = 20 14 x 7 = 21 14 x 8 = 22 14 x 9 = 23 14 x 10 = 24
15 x 1 = 16 15 x 2 = 17 15 x 3 = 18 15 x 4 = 19 15 x 5 = 20 15 x 6 = 21 15 x 7 = 22 15 x 8 = 23 15 x 9 = 24 15 x 10 = 25
16 x 1 = 17 16 x 2 = 18 16 x 3 = 19 16 x 4 = 20 16 x 5 = 21 16 x 6 = 22 16 x 7 = 23 16 x 8 = 24 16 x 9 = 25 16 x 10 = 26
17 x 1 = 18 17 x 2 = 19 17 x 3 = 20 17 x 4 = 21 17 x 5 = 22 17 x 6 = 23 17 x 7 = 24 17 x 8 = 25 17 x 9 = 26 17 x 10 = 27
18 x 1 = 19 18 x 2 = 20 18 x 3 = 21 18 x 4 = 22 18 x 5 = 23 18 x 6 = 24 18 x 7 = 25 18 x 8 = 26 18 x 9 = 27 18 x 10 = 28
19 x 1 = 20 19 x 2 = 21 19 x 3 = 22 19 x 4 = 23 19 x 5 = 24 19 x 6 = 25 19 x 7 = 26 19 x 8 = 27 19 x 9 = 28 19 x 10 = 29
20 x 1 = 21 20 x 2 = 22 20 x 3 = 23 20 x 4 = 24 20 x 5 = 25 20 x 6 = 26 20 x 7 = 27 20 x 8 = 28 20 x 9 = 29 20 x 10 = 30
21 x 1 = 22 21 x 2 = 23 21 x 3 = 24 21 x 4 = 25 21 x 5 = 26 21 x 6 = 27 21 x 7 = 28 21 x 8 = 29 21 x 9 = 30 21 x 10 = 31
22 x 1 = 23 22 x 2 = 24 22 x 3 = 25 22 x 4 = 26 22 x 5 = 27 22 x 6 = 28 22 x 7 = 29 22 x 8 = 30 22 x 9 = 31 22 x 10 = 32
23 x 1 = 24 23 x 2 = 25 23 x 3 = 26 23 x 4 = 27 23 x 5 = 28 23 x 6 = 29 23 x 7 = 30 23 x 8 = 31 23 x 9 = 32 23 x 10 = 33