| Problem | Solution | % Correct | |
|---|---|---|---|
| 1 | 9 + 8 | 17 | 97%
|
| 6 | 99 + 106 | 205 | 93%
|
| 4 | 18 + 29 | 47 | 93%
|
| 3 | 23 + 34 | 57 | 93%
|
| 2 | 7 + 54 | 61 | 93%
|
| 9 | 300 + 500 | 800 | 90%
|
| 5 | 69 + 78 | 147 | 87%
|
| 7 | 107 + 156 | 263 | 83%
|
| 8 | 299 + 333 | 632 | 80%
|
| 14 | 300 + 1030 | 1330 | 73%
|
| 16 | 9 + 9654 | 9663 | 73%
|
| 10 | 444 + 582 | 1026 | 70%
|
| 11 | 555 + 633 | 1188 | 63%
|
| 12 | 782 + 986 | 1768 | 57%
|
| 13 | 174 + 533 | 707 | 57%
|
| 18 | 6000 + 3202 | 9202 | 57%
|
| 17 | 3453 + 1222 | 4675 | 43%
|
| 19 | 7005 + 329 | 7334 | 40%
|
| 23 | 4500 + 4501 | 9001 | 37%
|
| 15 | 987 + 888 | 1875 | 33%
|
| 22 | 1301 + 6689 | 7990 | 20%
|
| 20 | 8788 + 1024 | 9812 | 20%
|
| 21 | 5544 + 3399 | 8943 | 17%
|
| 24 | 3996 + 4887 | 8883 | 13%
|