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