| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 364 |
37.4%
|
| 11 | Lack/limited understanding of basic number facts | 299 |
30.7%
|
| 12 | Confusing the basic operation signs | 49 |
5%
|
| 13 | Failure to recognise number symbol(s) | 6 |
0.6%
|
| 14 | Counting error | 122 |
12.5%
|
| 15 | Failure/inadequate understanding of mathematical terms | 0 |
0%
|
| 16 | Do not know mathematical formulas | 0 |
0%
|
| 21 | Errors in regrouping | 82 |
8.4%
|
| 22 | Misalignment of digits as per their place value | 25 |
2.6%
|
| 31 | Misunderstanding of place value | 24 |
2.5%
|
| 32 | Overgeneralization | 2 |
0.2%
|
| Sysmiss | 3 |