| Oefening 1 | |||||
| 1. | 105 ? 56 = 161 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                            
                        |
| 2. | 10 ? 7 = 70 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                            
                        |
| 3. | 163 ? 132 = 31 | 
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                            
                        |
| 4. | 153 ? 90 = 243 | 
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                            
                        |
| 5. | 111 ? 97 = 208 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                            
                        |
| 6. | 123 ? 122 = 1 | 
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                            
                        |
| 7. | 164 ? 141 = 305 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                            
                        |
| 8. | 11 ? 5 = 55 | 
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                            
                        |
| 9. | 185 ? 124 = 309 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                            
                        |
| 10. | 7 ? 5 = 35 | 
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                            
                        |
| 11. | 95 ? 65 = 160 | 
                                     
                                         - 
                                     
                                 | 
                                                            
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                            
                        |
| 12. | 164 ? 107 = 57 | 
                                     
                                        ×
                                     
                                 | 
                                                            
                                     
                                         + 
                                     
                                 | 
                                                            
                                     
                                         - 
                                     
                                 | 
                            
                        |
| Oefening 1 | |||||
| 1. | 105 ? 56 = 161 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                            
                        |
| 2. | 10 ? 7 = 70 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                            
                        |
| 3. | 163 ? 132 = 31 | 
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                            
                        |
| 4. | 153 ? 90 = 243 | 
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                            
                        |
| 5. | 111 ? 97 = 208 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                            
                        |
| 6. | 123 ? 122 = 1 | 
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                            
                        |
| 7. | 164 ? 141 = 305 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                            
                        |
| 8. | 11 ? 5 = 55 | 
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                            
                        |
| 9. | 185 ? 124 = 309 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                            
                        |
| 10. | 7 ? 5 = 35 | 
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                            
                        |
| 11. | 95 ? 65 = 160 | 
                                                                         
                                         - 
                                     
                                    
                                 | 
                                                            
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                            
                        |
| 12. | 164 ? 107 = 57 | 
                                                                         
                                        ×
                                     
                                    
                                 | 
                                                            
                                                                         
                                         + 
                                     
                                    
                                 | 
                                                            
                                                                         
                                         - 
                                     
                                    
                                 | 
                            
                        |