Model subtraction by separating and taking away part of a group of objects
| 1. | Five Take Five | |
| 2. | Five Take Four | |
| 3. | Four Take Four | |
| 4. | Four Take Three | |
| 5. | Three Take Three | |
| 6. | Three Take One | |
| 7. | Two Take Two | |
| 8. | Two Take One | |
| 9. | 7 Frogs and a Pond: 7 - 3 | |
| 10. | 7 Frogs and a Pond: 7 - 1 | |
| 11. | 7 Frogs And A Pond: 7 - 2 | |
| 12. | 7 Frogs and a Pond: 7 - 4 | |
| 13. | 7 Frogs and a Pond: 7 - 5 | |
| 14. | 7 Frogs and a Pond: 7 - 6 | |
| 15. | 7 Frogs and a Pond: 7 - 7 |