| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 286 |
29.4%
|
| 11 | Lack/limited understanding of basic number facts | 321 |
33%
|
| 12 | Confusing the basic operation signs | 55 |
5.7%
|
| 13 | Failure to recognise number symbol(s) | 3 |
0.3%
|
| 14 | Counting error | 130 |
13.4%
|
| 15 | Failure/inadequate understanding of mathematical terms | 0 |
0%
|
| 16 | Do not know mathematical formulas | 0 |
0%
|
| 21 | Errors in regrouping | 66 |
6.8%
|
| 22 | Misalignment of digits as per their place value | 26 |
2.7%
|
| 31 | Misunderstanding of place value | 24 |
2.5%
|
| 32 | Overgeneralization | 61 |
6.3%
|
| Sysmiss | 4 |