Step 3
Difficulty 3
1. | Add these 3 numbers: 4 + 4 + 3 | |
2. | True or False?: 21 + 4 = 25 | |
3. | True or False?: 23 + 2 = 27 | |
4. | True or False?: 26 + 3 = 29 | |
5. | True or False?: 24 + 4 = 25 | |
6. | True or False?: 22 + 6 = 28 | |
7. | Same or different? Click all boxes with answer 18 | |
8. | Same or Different? Click all boxes with answer 16 | |
9. | Number detectives: Mysteries of 15 | |
10. | Number detectives: Mysteries of 16 | |
11. | Number detectives: Mysteries of 13 | |
12. | Number detectives: Mysteries of 17 | |
13. | Number detectives: Mysteries of 14 | |
14. | Now Add This! 52+20, 52+17 | |
15. | Addition Chains | |
16. | Addition Chains | |
17. | Addition Chains | |
18. | Addition Chains | |
19. | Addition Chains | |
20. | 40s zone: 4 more than 38 | |
21. | 40s zone: 4 more than 39 | |
22. | 50s zone: Add on 5 to 47. | |
23. | 50s zone: 48 plus 5 | |
24. | 50s zone: 5 more than 46 | |
25. | Bargain Basement: $3 + (2x$2) + $10 | |
26. | True or False?: 15 + 5 = 20 | |
27. | True or False?: 16 + 3 = 18 | |
28. | True or False?: 16 + 4 = 20 | |
29. | Number Detectives: 24 + 6 = ? | |
30. | Number Detectives: 5 + 25 = ? | |
31. | Make 50: 40 + 4 + ? | |
32. | Make 34: 10 + 22 + ? | |
33. | Add on tens: Add 10, 20 to 35 | |
34. | Add on tens: Add 10, 20 to 16. | |
35. | Add on tens: Add 10, 20 to 36 | |
36. | Addition Chains: 4 + 5 + 6 + 8, 11 + 4 + 3+ 7 | |
37. | Addition Chains: 3 + 2 + 4 + 8, 4 + 3 + 7 + 4 | |
38. | Add three numbers: 11 + 14 + 5 | |
39. | True or False: 7+8=12 | |
40. | True or False: 17+2=20 | |
41. | True or False: 10+9=19 | |
42. | True or False: 22+4=23 | |
43. | True or False: 9+6=15 | |
44. | Number detectives: 22+9 = ? | |
45. | Number detectives: 51+11 = ? | |
46. | Number detectives: 35+? = 46 | |
47. | Add Board: 24 + 15 = ? | |
48. | Add Board: 25 + 13 = ? | |
49. | Beyond 40: 6 more than 45 | |
50. | Beyond 60: 8 more than 68 | |
51. | Beyond 50: 7 more than 58 | |
52. | N/D Mysteries of 40! 34+? 30+? 38+?=40 | |
53. | N/D Mysteries of 40! 31+? 36+? 30+?=40 | |
54. | N/D Mysteries of 40! 33+? 37+? 32+?=40 | |
55. | N/D Mysteries of 40! 32+? 39+? 34+?=40 | |
56. | N/D Mysteries of 40! 31+? 35+? 37+?=40 | |
57. | Leah's Fruit Salad: 25c + 40c | |
58. | Roberto's Fruit Salad: 25c + 40c | |
59. | Isabelle's Fruit Salad: 45c + 40c | |
60. | Laura's Fruit Salad: 20c + 40c | |
61. | Connor's Fruit Salad: 20c + 45c | |
62. | The 1 Family - Add 1, add 11 to 35 | |
63. | The 1 Family - Add 1, add 11 to 27 | |
64. | The 1 Family - Add 1, add 11 to 49 | |
65. | The 1 Family - Add 1, add 11 to 57 | |
66. | The 1 Family - Add 1, add 11 to 83 | |
67. | Number detectives: ? - 5 = 10 | |
68. | Number detectives: ? - 7 = 6 | |
69. | Number detectives: ? - 8 = 4 | |
70. | True or False? 10-5=20-5 | |
71. | Put in the missing number: 9 + 2 + ? = 19 | |
72. | Put in the missing number: ? + 10 + 14 = 28 | |
73. | Subtraction Chain - 21-4 =?-1= 16 | |
74. | Taking ten: 46-10 | |
75. | Taking ten: 72-10 | |
76. | Taking ten: 39-10 | |
77. | Taking ten: 55-10 | |
78. | Taking ten: 81-10 | |
79. | Mysteries of Fifty: 50-?=42, 50-?=45 | |
80. | Mysteries of Forty: 40-?=36, 40-?=31 | |
81. | Mysteries of Forty: 40-?=33, 40-?=39 | |
82. | Mysteries of Forty: 40-?=35, 40-?=38 | |
83. | True or False?: 21 - 16 = 4 | |
84. | True or False?: 18 - 9 = 8 | |
85. | True or False?: 24 - 15 = 8 | |
86. | True or False?: 22 - 10 = 11 | |
87. | True or False?: 19 - 13 = 6 | |
88. | True or False?: 26 - 13 = 13 | |
89. | Use the pattern 16-7=? 26-7=?, 36-7=? | |
90. | Use the pattern 11-5=? 21-5=?, 31-5=? | |
91. | Use the pattern 17-8=? 27-8=?, 37-8=? | |
92. | 100 grid: 76 take away 7 | |
93. | 100 grid: 54 take away 8 | |
94. | 100 grid: 64 take away 9 | |
95. | 100 grid: 23 take away 7 | |
96. | 100 grid: 71 take away 8 | |
97. | 100 grid: 34 take away 6 | |
98. | The 9 family: Take 9, 19 & 29 from 65 | |
99. | The 9 family: Take 9, 19 & 29 from 72 | |
100. | Same Difference - Difference between 10 and 40. | |
101. | Write the missing number: 18 + ? + 2 = 30 | |
102. | Write the missing number: ? + 13 + 5 = 30 | |
103. | Write the missing number: 14 + 7 + ? = 30 | |
104. | Number detectives: ? + 23 = 30 | |
105. | Number detectives: ? + 18 = 30 | |
106. | True or False?: 30 - 8 = 22 | |
107. | True or False?: 30 - 25 = 20 | |
108. | True or False?: 30 - 10 = 20 | |
109. | True or False?: 30 - 10 = 15 | |
110. | True or False?: 30 - 7 = 23 | |
111. | Number detectives: 30 - 14 = ? | |
112. | Count Down: 6 less than 41 | |
113. | Count Down: 3 less than 42 | |
114. | Subtract.chains 47 - 4 - 3 - 7, 28 - 8 - 2 - 5 | |
115. | Subtract.chains 23 - 4 - 1 - 3, 36 - 5 - 2 - 6 | |
116. | Subtract.chains 28 - 5 - 2 - 10, 50 - 5 - 3 - 2 | |
117. | Spot the difference: 60 & 40, 12 & 18, 100 & 95 | |
118. | Spot the difference: 100 & 30, 19 & 11, 30 & 24 | |
119. | Count down 52-4=? | |
120. | Count down 43-6=? | |
121. | Count down 61-5=? | |
122. | Count down 36-8=? | |
123. | Count down 72-7=? | |
124. | Count down 94-9=? | |
125. | Subtracting tens 55 - 20 = ? | |
126. | Subtracting tens 48 - 20 = ? | |
127. | Subtracting tens 72 - 30 = ? | |
128. | Subtracting tens 87 - 60 = ? | |
129. | Subtracting tens 91 - 60 = ? | |
130. | Drew at the shop: $1 - 50c | |
131. | Samantha at the shop: $1 - 10c | |
132. | Barbara at the shop: $1 - 30c | |
133. | Jenny at the shop: $1 - 40c | |
134. | Charlotte at the shop: $1 - 60c |