Using concrete objects and pictorial representations, including those involving numbers, quantities and measures
1. | Use the Pattern: 4+0, +10, +20 | |
2. | Use the Pattern: 5+0, +10, +20 | |
3. | Use the Pattern: 7+0, +10, +20 | |
4. | Use the Pattern: 6+0, +10, +20 | |
5. | Use the Pattern: 3+0, +10, +20 | |
6. | Use the Pattern: 9+0, +10, +20 | |
7. | Add these 3 numbers: 14 + 5 + 2 | |
8. | Add these 3 numbers: 11 + 4 + 5 | |
9. | Add these 3 numbers: 13 + 7 + 6 | |
10. | Use the Pattern: 5+4,15+4,25+4 | |
11. | Use the Pattern: 6+4,16+4,26+4 | |
12. | Use the Pattern: 10+2,20+2,30+2 | |
13. | 100 Grid: Start at 15. Add 7 | |
14. | 100 Grid: Start at 28. Add 8 | |
15. | 100 Grid: Start at 14. What is 11 more? | |
16. | 100 grid: 11 more than 33 | |
17. | 100 grid: Find 9 more than 27 | |
18. | The Chicken Story: seventeen + twelve | |
19. | Same or Different? Click all boxes with answer 20 | |
20. | Now Add This! 34+11, 34+12 | |
21. | Now Add This! 19+20, 19+24 | |
22. | Now Add This! 26+21, 26+31 | |
23. | Now Add This! 52+20, 52+17 | |
24. | Now Add This! 33+19, 33+21 | |
25. | Addition Chains | |
26. | Addition Chains | |
27. | Addition Chains | |
28. | Addition Chains | |
29. | Addition Chains | |
30. | Add three numbers: 14 + 7 + 3 | |
31. | Add three numbers: 10 + 12 + 8 | |
32. | Add three numbers: 20 + 10 + 20 | |
33. | Same or Different: Click all the boxes with the answer 26. | |
34. | Same or Different: Click all the boxes with the answer 28. | |
35. | 100 grid: Start at 73. Add 7. | |
36. | 100 grid: Start at 45. Add 8. | |
37. | 100 grid: Start at 26. Add 5. | |
38. | 100 grid: Start at 68. Add 4. | |
39. | 100 grid: Start at 52. Add 7. | |
40. | Beyond 20: What is 6 more than 29? | |
41. | Beyond 50: What is 4 more than 57? | |
42. | Beyond 30: What is 4 more than 38? | |
43. | Thinking in tens: Add 10, 19 to 19 | |
44. | Thinking in tens: Add 10, 11 to 14 | |
45. | Addition Chains: 4 + 5 + 5 + 2, 10 + 5 + 5 + 10 | |
46. | Addition Chains: 2 + 4 + 3 + 10, 12 + 1 + 2 + 7 | |
47. | Addition Chains: 4 + 5 + 6 + 8, 11 + 4 + 3+ 7 | |
48. | Add three numbers: 2 + 13 + 9 | |
49. | Add three numbers: 15 + 7 + 8 | |
50. | Add three numbers: 14 + 12 + 8 | |
51. | Add three numbers: 17 + 7 + 12 | |
52. | Add three numbers: 11 + 14 + 5 | |
53. | The 1 Family - Add 1, add 11 to 35 | |
54. | The 1 Family - Add 1, add 11 to 27 | |
55. | The 1 Family - Add 1, add 11 to 49 | |
56. | The 1 Family - Add 1, add 11 to 57 | |
57. | The 1 Family - Add 1, add 11 to 83 | |
58. | Same or different:19-12,2+5,3+4,33-26,16-8 | |
59. | Use the pattern: 8 - 4, - 3, - 2 | |
60. | Use the pattern: 6 - 6, - 5, - 4 | |
61. | 100 grid: 73-7 | |
62. | 100 grid: 48-9 | |
63. | 100 grid: 74-7 | |
64. | 100 grid: 82-8 | |
65. | 100 grid: 54-6 | |
66. | 100 grid: 61-5 | |
67. | 100 grid: 69 take away 11 | |
68. | 100 grid: 41 take away 6 | |
69. | 100 grid: 53 subtract 8 | |
70. | 100 grid: 32 take away 5 | |
71. | 100 grid: 76 take away 7 | |
72. | 100 grid: 54 take away 8 | |
73. | 100 grid: 64 take away 9 | |
74. | 100 grid: 84 take away 8 | |
75. | 100 grid: 46 take away 9 | |
76. | 100 grid: 23 take away 7 | |
77. | 100 grid: 71 take away 8 | |
78. | 100 grid: 34 take away 6 | |
79. | 100 grid: 77 take away 9 | |
80. | Subtract from 30: 30 - 20, 7 & 12 | |
81. | Subtract from 30: 30 - 15, 10 & 6 | |
82. | Subtract from 30: 30 - 11, 5 & 21 | |
83. | Subtract from 30: 30 - 8, 30 & 14 | |
84. | Subtract from 30: 30 - 17, 30 & 5 | |
85. | The 9 family: Take 9, 19 & 29 from 57 | |
86. | The 9 family: Take 9, 19 & 29 from 65 | |
87. | The 9 family: Take 9, 19 & 29 from 72 | |
88. | The 9 family: Take 9, 19 & 29 from 44 | |
89. | The 9 family: Take 9, 19 & 29 from 36 | |
90. | Subtract.chains 48 - 7 - 2 - 9, 35 - 4 - 3 - 8 | |
91. | Subtract.chains 47 - 4 - 3 - 7, 28 - 8 - 2 - 5 | |
92. | Subtract.chains 23 - 4 - 1 - 3, 36 - 5 - 2 - 6 | |
93. | Subtract.chains 28 - 5 - 2 - 10, 50 - 5 - 3 - 2 | |
94. | Subtraction chains 80-6-5-3, 70-4-2-5 | |
95. | Subtraction chains 30-9-2-5, 60-5-4-3 | |
96. | Subtraction chains 40-5-6-3, 50-9-2-8 | |
97. | Subtraction chains 90-3-5-3, 40-2-8-5 | |
98. | Subtraction chains 60-9-2-3, 50-3-6-10 | |
99. | The Chicken Story: sixty + eleven | |
100. | The Chicken Story: forty + thirty | |
101. | The Chicken Story: seventy-four - sixty-seven | |
102. | The Chicken Story: forty-four - thirty-four | |
103. | The Chicken Story: twenty-eight - twenty | |
104. | The Chicken Story: fifty - forty-six | |
105. | The Chicken Story: thirty - twenty-five | |
106. | The Chicken Story: thirty-seven - thirty-four | |
107. | The Chicken Story: twenty-four - twenty | |
108. | The Chicken Story: sixty + thirty | |
109. | The Chicken Story: seventy-nine - seventy-three | |
110. | The Chicken Story: fifty + twenty |