| Value | Category | Cases | |
|---|---|---|---|
| 1 | Child adds numbers correctly | 1234 | 
                                    
                                    21.1%
                                 | 
| 2 | Child didnt add numbers correctly | 733 | 
                                    
                                    12.5%
                                 | 
| 3 | No attempt | 1457 | 
                                    
                                    24.9%
                                 | 
| Sysmiss | 2426 | 
                                    
                                    41.5%
                                 |