| 3 4 3 |
| + 3 4 5 |
| _________ |
| 6 8 8 |
| _________ | |
| 3 4 3 |
| + 5 5 2 |
| _________ |
| 8 9 5 |
| _________ | |
| 2 4 6 |
| + 5 4 3 |
| _________ |
| 7 8 9 |
| _________ | |
| 6 4 7 |
| + 3 4 2 |
| _________ |
| 9 8 9 |
| _________ | |
| 2 5 1 |
| + 5 4 3 |
| _________ |
| 7 9 4 |
| _________ | |
| 3 2 2 |
| + 5 5 7 |
| _________ |
| 8 7 9 |
| _________ | |
| 6 3 8 |
| + 3 6 1 |
| _________ |
| 9 9 9 |
| _________ | |
| 3 2 6 |
| + 4 6 1 |
| _________ |
| 7 8 7 |
| _________ | |
| 9 5 2 |
| − 4 4 2 |
| _________ |
| 5 1 0 |
| _________ | |
| 7 6 7 |
| − 5 4 5 |
| _________ |
| 2 2 2 |
| _________ | |
| 4 7 9 |
| − 2 4 8 |
| _________ |
| 4 3 1 |
| _________ | |
| 9 8 7 |
| − 8 4 4 |
| _________ |
| 1 4 3 |
| _________ | |
| 4 4 9 |
| − 2 4 2 |
| _________ |
| 2 0 7 |
| _________ | |
| 3 4 4 |
| − 2 3 4 |
| _________ |
| 1 1 0 |
| _________ | |
| 5 4 7 |
| − 2 2 2 |
| _________ |
| 3 2 5 |
| _________ | |
| 8 4 7 |
| − 2 1 3 |
| _________ |
| 6 3 4 |
| _________ | |