x | −3 | −2 | −1 | 0 | 1 | 2 | 3 |
−3 | |||||||
−2 | |||||||
−1 | |||||||
0 | |||||||
1 | |||||||
2 | |||||||
3 |
× | –3 | –2 | –1 | 0 | 1 | 2 | 3 |
–3 | 9 | 6 | 3 | 0 | –3 | –6 | –9 |
–2 | 6 | 4 | 2 | 0 | –2 | –4 | –6 |
–1 | 3 | 2 | 1 | 0 | –1 | –2 | –3 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
1 | –3 | –2 | –1 | 0 | 1 | 2 | 3 |
2 | –6 | –4 | –2 | 0 | 2 | 4 | 6 |
3 | –9 | –6 | –3 | 0 | 3 | 6 | 9 |