곱셈 2자리 X 2자리
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곱셈: 2 x 21X9
1
| 1 | 9 | ||
| 8 | 2 | ||
| 3 | 8 | ||
| 1 | 5 | 2 | 0 |
| 1 | 5 | 5 | 8 |
2
| 7 | 4 | ||
| 7 | 5 | ||
| 3 | 7 | 0 | |
| 5 | 1 | 8 | 0 |
| 5 | 5 | 5 | 0 |
3
| 9 | 4 | ||
| 2 | 5 | ||
| 4 | 7 | 0 | |
| 1 | 8 | 8 | 0 |
| 2 | 3 | 5 | 0 |
4
| 2 | 4 | ||
| 7 | 5 | ||
| 1 | 2 | 0 | |
| 1 | 6 | 8 | 0 |
| 1 | 8 | 0 | 0 |
5
| 4 | 0 | ||
| 8 | 5 | ||
| 2 | 0 | 0 | |
| 3 | 2 | 0 | 0 |
| 3 | 4 | 0 | 0 |
6
| 6 | 0 | ||
| 1 | 1 | ||
| 6 | 0 | ||
| 6 | 0 | 0 | |
| 6 | 6 | 0 |
7
| 6 | 0 | ||
| 2 | 1 | ||
| 6 | 0 | ||
| 1 | 2 | 0 | 0 |
| 1 | 2 | 6 | 0 |
8
| 9 | 0 | ||
| 5 | 9 | ||
| 8 | 1 | 0 | |
| 4 | 5 | 0 | 0 |
| 5 | 3 | 1 | 0 |
9
| 2 | 7 | ||
| 1 | 7 | ||
| 1 | 8 | 9 | |
| 2 | 7 | 0 | |
| 4 | 5 | 9 |
10
| 8 | 1 | ||
| 5 | 1 | ||
| 8 | 1 | ||
| 4 | 0 | 5 | 0 |
| 4 | 1 | 3 | 1 |
11
| 5 | 9 | ||
| 2 | 4 | ||
| 2 | 3 | 6 | |
| 1 | 1 | 8 | 0 |
| 1 | 4 | 1 | 6 |
12
| 4 | 0 | ||
| 4 | 3 | ||
| 1 | 2 | 0 | |
| 1 | 6 | 0 | 0 |
| 1 | 7 | 2 | 0 |
13
| 5 | 8 | ||
| 5 | 5 | ||
| 2 | 9 | 0 | |
| 2 | 9 | 0 | 0 |
| 3 | 1 | 9 | 0 |
14
| 5 | 4 | ||
| 2 | 2 | ||
| 1 | 0 | 8 | |
| 1 | 0 | 8 | 0 |
| 1 | 1 | 8 | 8 |
15
| 1 | 3 | ||
| 7 | 5 | ||
| 6 | 5 | ||
| 9 | 1 | 0 | |
| 9 | 7 | 5 |