| Similarity | Rank | |
|---|---|---|
| math | 0.857 | 8239 |
| mathematics | 0.771 | 3792 |
| o-level | 0.755 | 26398 |
| exam | 0.753 | 4466 |
| gcse | 0.705 | 9062 |
| coursework | 0.699 | 16350 |
| syllabus | 0.699 | 6704 |
| a-level | 0.695 | 11290 |
| first-year | 0.693 | 18841 |
| cse | 0.682 | 19576 |
| teach | 0.678 | 1232 |
| tutorial | 0.674 | 8461 |
| chatterbox | 0.667 | 37444 |
| sixth-form | 0.666 | 29592 |
| learners | 0.663 | 66185 |
| pgce | 0.662 | 26315 |
| efl | 0.659 | 24612 |
| homework | 0.654 | 6746 |
| pre-intermediate | 0.652 | 50734 |
| arithmetic | 0.652 | 8671 |
| gce | 0.644 | 17254 |
| lesson | 0.644 | 2140 |
| p.e. | 0.641 | 43968 |
| fourth-year | 0.635 | 43799 |
| elementary | 0.635 | 7402 |