Use concrete materials to model the addition and subtraction of two or more numbers, with and without trading, and record the method used
| 1. | Now Add This! 34+11, 34+12 | |
| 2. | Now Add This! 19+20, 19+24 | |
| 3. | Now Add This! 52+20, 52+17 | |
| 4. | Now Add This! 33+19, 33+21 | |
| 5. | Add on tens: Add 10, 20 to 35 | |
| 6. | Add on tens: Add 10, 20 to 16. | |
| 7. | Add on tens: Add 10, 20 to 36 | |
| 8. | The 1 Family - Add 1, add 11 to 35 | |
| 9. | The 1 Family - Add 1, add 11 to 27 | |
| 10. | The 1 Family - Add 1, add 11 to 49 | |
| 11. | The 1 Family - Add 1, add 11 to 57 | |
| 12. | The 1 Family - Add 1, add 11 to 83 | |
| 13. | The Nine Family: 53 + 9, + 19 + 29 | |
| 14. | The Nine Family: 47 + 9, + 19 + 29 | |
| 15. | The Nine Family: 38 + 9, + 19 + 29 | |
| 16. | The Nine Family: 55 + 9, + 19, + 29 | |
| 17. | The Nine Family: 42 + 9, + 19, + 29 | |
| 18. | 100 grid: 41 take away 6 | |
| 19. | 100 grid: 53 subtract 8 | |
| 20. | 100 grid: 32 take away 5 | |
| 21. | 100 grid: 76 take away 7 | |
| 22. | 100 grid: 54 take away 8 | |
| 23. | 100 grid: 64 take away 9 | |
| 24. | 100 grid: 84 take away 8 | |
| 25. | 100 grid: 46 take away 9 | |
| 26. | 100 grid: 23 take away 7 | |
| 27. | 100 grid: 71 take away 8 | |
| 28. | 100 grid: 34 take away 6 | |
| 29. | 100 grid: 77 take away 9 | |
| 30. | Subtract from 30: 30 - 20, 7 & 12 | |
| 31. | Subtract from 30: 30 - 15, 10 & 6 | |
| 32. | Subtract from 30: 30 - 11, 5 & 21 | |
| 33. | Subtract from 30: 30 - 8, 30 & 14 | |
| 34. | Subtract from 30: 30 - 17, 30 & 5 | |
| 35. | The 9 family: Take 9, 19 & 29 from 57 | |
| 36. | The 9 family: Take 9, 19 & 29 from 65 | |
| 37. | The 9 family: Take 9, 19 & 29 from 72 | |
| 38. | The 9 family: Take 9, 19 & 29 from 44 | |
| 39. | The 9 family: Take 9, 19 & 29 from 36 | |
| 40. | Eleven family: Subtract 1, 11 & 21 from 5 | |
| 41. | Eleven family: Subtract 1, 11 & 41 from 85 | |
| 42. | Eleven family: Subtract 1, 11 & 31 from 77 | |
| 43. | Eleven family: Subtract 1, 11 & 21 from 68 | |
| 44. | Eleven family: Subtract 1, 11 & 71 from 96 | |
| 45. | Subtract 2, 12 from 100 | |
| 46. | Subtract 3, 13 from 100 | |
| 47. | Subtract 5, 15 from 100 | |
| 48. | Subtract 7, 17 from 100 | |
| 49. | Subtract 8, 18 from 100 | |
| 50. | Subtract 4, 14 from 100 | |
| 51. | The Chicken Story: forty + thirty | |
| 52. | The Chicken Story: seventy-seven + twelve | |
| 53. | The Chicken Story: sixty + thirty | |
| 54. | The Chicken Story: seventy-nine - seventy-three | |
| 55. | The Chicken Story: fifty + twenty | |
| 56. | The Chicken Story: thirty-nine + twelve | |
| 57. | The Chicken Story: thirty-six + fourteen | |
| 58. | The Chicken Story: forty-one + seventeen | |
| 59. | The Chicken Story: thirteen + nineteen | |
| 60. | The Chicken Story: twenty-four + thirty-two |