| Answer | % Correct |
|---|---|
| 10 + 21 = 31 | 65%
|
| 2 + 3 = 5 | 63%
|
| 77 + 44 = 121 | 61%
|
| 106 + 41 = 147 | 60%
|
| 291 + 8 = 299 | 60%
|
| 89 + 22 = 111 | 59%
|
| 307 + 109 = 416 | 56%
|
| 403 + 11 = 414 | 55%
|
| 230 + 167 = 397 | 52%
|
| 167 + 137 = 304 | 51%
|
| 56 + 71 = 127 | 51%
|
| 67 + 262 = 329 | 51%
|
| 44 + 371 = 415 | 50%
|
| 148 + 189 = 337 | 47%
|