| Question | Answer | % Correct |
|---|---|---|
| 121-21 | 100 | 93%
|
| 30x120 | 3,600 | 92%
|
| 250 divide 2 | 125 | 91%
|
| 750 divide 5 | 150 | 90%
|
| 99-250 | -151 | 89%
|
| 54x20 | 1,080 | 88%
|
| 658+1170 | 1,828 | 88%
|
| 21x21 | 441 | 88%
|
| 3600 divide 30 | 120 | 85%
|
| 457+38020 | 38,477 | 85%
|
| 72+2772 | 2,844 | 79%
|
| 9742 divide 2 | 4,871 | 75%
|
| 369x3 | 1,107 | 73%
|
| 8642-3579 | 5,063 | 54%
|
| 1000000-10000 | 999,000 | 42%
|
| 87654321+9876543210 | 989,964,197,531 | 1%
|