| Problem | Solution | % Correct |
|---|---|---|
| 9 x 7 | 63 | 100%
|
| 9 x 53 | 477 | 87%
|
| 9 x 78 | 702 | 81%
|
| 9 x 13 | 117 | 80%
|
| 9 x 26 | 234 | 79%
|
| 9 x 97 | 873 | 78%
|
| 9 x 9 | 81 | 75%
|
| 9 x 35 | 315 | 74%
|
| 9 x 46 | 414 | 73%
|
| 9 x 27 | 243 | 72%
|
| 9 x 64 | 576 | 66%
|
| 9 x 55 | 495 | 64%
|
| 9 x 73 | 657 | 62%
|
| 9 x 99 | 891 | 62%
|
| 9 x 42 | 378 | 61%
|