QUIT
| 7 | 8 | 9 | 0 |
| 4 | 5 | 6 | . |
| 1 | 2 | 3 | DEL |
| Enter | CLR | ||
10
| 7 | 8 | 9 | 0 |
| 4 | 5 | 6 | . |
| 1 | 2 | 3 | DEL |
| Enter | CLR | ||