Step 2
Difficulty 2
1. | Add Board: *0 + 20 = 100 | |
2. | Make 50: 20+10+? | |
3. | Make 50: 20+10+? | |
4. | Make 50: 20+10+? | |
5. | Make 50: 20+10+? | |
6. | Make 50: 20+10+? | |
7. | Adding tens: ?+ 36 = 66 | |
8. | Adding tens: ?+ 73 = 83 | |
9. | Adding tens: ?+ 46 = 86 | |
10. | Make 50: 20+10+? | |
11. | Adding tens: 120 + ? = 140; 120 + 50 = ? | |
12. | Adding tens: 145 + ? = 155, 145 + 30 = ? | |
13. | Adding tens: 138 + ? = 178, 178 + 20 = ? | |
14. | Use the pattern: 2+4, 12+4, 120 + 40 | |
15. | Use the pattern: 4+1, 14+1, 140+10 | |
16. | Use The Pattern: 4+3, 14+3, 140+30 | |
17. | Use The Pattern: 2+7, 12+7, 120+70 | |
18. | Use The Pattern: 5+4, 15+4, 150+40 | |
19. | Use The Pattern: 3+6, 13+6, 130+60 | |
20. | Use The Pattern: 5+3, 15+3, 150+30 | |
21. | On The Board 254+100 | |
22. | On The Board 458+100 | |
23. | On The Board 765+100 | |
24. | On The Board 553+100 | |
25. | Number detectives: 80+?, 90+?, 40+?=100 | |
26. | Number detectives: 10+?, 70+?, 50+?=100 | |
27. | 100 Zone: 93 + 10, 94 + 10, 96 + 10 | |
28. | 100 Zone: 90 + 10, 92 + 10, 97 + 10 | |
29. | 100 Zone: 95 + 10,10 + 95, 105 - 10 | |
30. | 100 Zone: 98 + 10,10 + 98, 108 - 10 | |
31. | 100 Zone: 99 + 10,109 - 10, 10 + 99 | |
32. | Add it up: Addition with trading 52+9 | |
33. | Add it up: Addition with trading 46+8 | |
34. | Add it up: Addition with trading 22+5 | |
35. | Add it up: Addition with trading 26+17 | |
36. | Add it up: Addition with trading 38+14 | |
37. | Changing Numbers 98 to 105 | |
38. | Changing Numbers 97 to 103 | |
39. | Changing Numbers 97 to 102 | |
40. | Changing Numbers 99 to 103 | |
41. | Changing Numbers 42 to 62 | |
42. | Changing Numbers 63 to 93 | |
43. | Changing Numbers 137 to 157 | |
44. | Number detectives 45+*=100 | |
45. | Number detectives 75+*=100 | |
46. | Number detectives 85+*=100 | |
47. | Number detectives 35+*=100 | |
48. | Number detectives 5+*=100 | |
49. | Number detectives 235+6 = * | |
50. | Number detectives 98+7=* | |
51. | Use the pattern: 6+3, 60+30, 600+300 | |
52. | Use the pattern: 2+4, 20+40, 200+400 | |
53. | Use the pattern: 2+6, 20+60, 200+600 | |
54. | Add board 152+40 | |
55. | Add board 122+46 | |
56. | Add board 173+26 | |
57. | Add board 164+33 | |
58. | Add board 163+32 | |
59. | Adding Tens 167 + * = 197 | |
60. | Anyone for a burger?: $5+$4+$1+$2 | |
61. | Anyone for a burger?: $6+$4+$1+$3 | |
62. | Anyone for a burger?: $5+$4+$1+$2 | |
63. | Bargain basement: $8+$4+$10 | |
64. | Same or different:13-4,6+3,12-5,19-8,32-23 | |
65. | Same or different:13+6,34-15,43-25,32-13,58-37 | |
66. | Mysteries of 30!: 20+?, 15+?, 5+? | |
67. | Mysteries of 30!: 19+?, 10+?, 16+? | |
68. | Mysteries of 30!: 12+?, 13+?, 14+? | |
69. | Mysteries of 30!: 9+?, 5+?, 7+? | |
70. | Mysteries of 30!: 26+?, 28+?, 22+? | |
71. | Number detectives: 65+?, 55+?, 85+?=100 | |
72. | Taking Tens: 90 - ? = 70 | |
73. | Anyone for a burger: $20 - ($4 + $5) | |
74. | Anyone for a burger: $20 - ($4 + $3) | |
75. | Anyone for a burger?: $10 - ($4 + $3) | |
76. | Anyone for a burger?: $15 - ($6 + $5) | |
77. | Bargain Basement: $20 - ($4+ $2+ $10) | |
78. | Bargain Basement: $20 - ($8 + $10) | |
79. | Anyone for a burger? $20 -($6 + $4 + $3) | |
80. | Use the pattern: 9-8, 90-80, 900-800 | |
81. | Use the pattern: 5-3, 50-30, 500-300 | |
82. | Use the pattern: 8-2, 80-20, 800-200 | |
83. | Takeaway board: 6? - 12 = 55 | |
84. | Anyone for a burger? $20 - ($4 + $5) | |
85. | Changing Numbers 55-37=? | |
86. | Changing Numbers 65-54=? | |
87. | Changing Numbers 48-22=? | |
88. | Changing Numbers 36-16=? | |
89. | Changing Numbers 51-28=? | |
90. | Changing Numbers 42-32=? | |
91. | Takeaway Board ?9-18 = 71 | |
92. | Takeaway Board 67-1?=53 | |
93. | Takeaway Board 79-?8=61 | |
94. | Takeaway Board ?7-17=50 | |
95. | Takeaway Board ?3-21=72 | |
96. | Write the missing number: 25 + 3 + ? = 35 | |
97. | Write the missing number: 25 + 4 + ? = 35 | |
98. | Write the missing number: 25 + 2 + ? = 35 | |
99. | The Mysteries of 30!: 30-?=26, 30-?=23, 30-?=27 | |
100. | The Mysteries of 30!: 30-?=23, 30-?=13, 30-?=3 | |
101. | The Mysteries of 30!: 30-?=18, 30-?=15, 30-?=12 | |
102. | The Mysteries of 30!: 30-?=14, 30-?=19, 30-?=9 | |
103. | Changeover: 7 less than 301 | |
104. | Changeover: 6 less than 904 | |
105. | Changeover: 6 less than 503 | |
106. | Changeover: 7 less than 204 | |
107. | Changeover: 8 less than 305 | |
108. | Same or Different: Answer 56 | |
109. | Same or Different: Answer 38 | |
110. | Same or Different: Answer 24 | |
111. | Crossing 100: Add 70 to 60 | |
112. | Crossing 100: Add 60 to 80 | |
113. | Crossing 100: Add 90 to 40 | |
114. | Crossing 100: Add 50 to 90 | |
115. | Crossing 100: Add 50 to 70 | |
116. | Amy at the shop: 50c + 10c | |
117. | David at the shop: 45c + 30c | |
118. | Alisa at the shop: 40c + 25c | |
119. | Ayesha at the shop: 25c + 10c | |
120. | Sherwyn at the shop: 50c + 30c | |
121. | Fizah at the shop: 25c + 30c | |
122. | Shyla at the shop: 25c + 70c |