| Problem | Answer | % Correct |
|---|---|---|
| 3-3 | 0 | 100%
|
| 5-4 | 1 | 100%
|
| 5+5 | 10 | 100%
|
| 4+7 | 11 | 100%
|
| 8+8 | 16 | 100%
|
| 2x1 | 2 | 100%
|
| 2x=4 | 2 | 100%
|
| 13-10 | 3 | 100%
|
| 90-60 | 30 | 100%
|
| 10-6 | 4 | 100%
|
| 7-1 | 6 | 100%
|
| 6+2 | 8 | 100%
|
| 100-20 | 80 | 100%
|
| 10-1 | 9 | 100%
|
| 1+11 | 12 | 99%
|