| Problem | Answer | % Correct |
|---|---|---|
| 10+9 | 19 | 100%
|
| 3+5 | 8 | 100%
|
| 2+7 | 9 | 100%
|
| 6+6 | 12 | 99%
|
| 3+8 | 12 | 99%
|
| 7+7 | 14 | 99%
|
| 10+8 | 18 | 99%
|
| 20+0 | 20 | 99%
|
| 1+4 | 5 | 99%
|
| 9+4 | 13 | 98%
|
| 7+8 | 15 | 98%
|
| 6+11 | 17 | 98%
|
| 5+1 | 6 | 98%
|
| 4+3 | 7 | 98%
|
| 12+10 | 22 | 97%
|