| Value | Category | Cases | |
|---|---|---|---|
| 1 | Child adds numbers correctly | 1957 | 
                                    
                                    33.5%
                                 | 
| 2 | Child didnt add numbers correctly | 199 | 
                                    
                                    3.4%
                                 | 
| 3 | No attempt | 1270 | 
                                    
                                    21.7%
                                 | 
| Sysmiss | 2424 | 
                                    
                                    41.4%
                                 |