| Hint | Answer | % Correct |
|---|---|---|
| -2 | 4 | 100%
|
| 3+3 | 6 | 100%
|
| -12 | 1 | 97%
|
| -5 | 11 | 97%
|
| x3 | 12 | 97%
|
| +4 | 13 | 97%
|
| +4 | 15 | 97%
|
| x4 | 16 | 97%
|
| x6 | 18 | 97%
|
| -10 | 2 | 97%
|
| -3 | 3 | 97%
|
| -5 | 4 | 97%
|
| +4 | 6 | 97%
|
| /2 | 9 | 97%
|
| +8 | 9 | 97%
|