Add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction
1. | Add Board: 60 + 23 | |
2. | Add Board: 30 + 70 | |
3. | Add Board: 40 + 60 | |
4. | Add Board: 63 + 20 | |
5. | On the board 13 + 15 = ? | |
6. | On the board 12 + 13 = ? | |
7. | On the board 14 + 12 = ? | |
8. | On the board 18 + 11 = ? | |
9. | On the board 15 + 14 = ? | |
10. | On the board 963 + 5 = ? | |
11. | On the board 242 + 6 = ? | |
12. | On the board 781 + 8 = ? | |
13. | On the board 427 + 2 = ? | |
14. | On the board 113 + 4 = ? | |
15. | On The Board 135+100 | |
16. | On The Board 254+100 | |
17. | On The Board 458+100 | |
18. | On The Board 765+100 | |
19. | On The Board 553+100 | |
20. | Add it up: Addition with trading 52+9 | |
21. | Add it up: Addition with trading 46+8 | |
22. | Add it up: Addition with trading 22+5 | |
23. | Add it up: Addition with trading 26+17 | |
24. | Add it up: Addition with trading 38+14 | |
25. | Add Board: 24 + 15 = ? | |
26. | Add Board: 45 + 34 = ? | |
27. | Add Board: 67 + 12 = ? | |
28. | Add Board: 32 + 65 = ? | |
29. | Add Board: 25 + 13 = ? | |
30. | Add it up: 69+23 | |
31. | Add it up: 46+26 | |
32. | Add it up: 37+24 | |
33. | Add it up: 58+34 | |
34. | Add it up: 28+25 | |
35. | Add board 40 + 14 = * | |
36. | Add board 56 + 11 = * | |
37. | Add board 71 + 18 = * | |
38. | Add board 45 + 23 = * | |
39. | Add board 5* + 46 = *8 | |
40. | Add board 35 + *3 = 7* | |
41. | Add It Up: Addition with regrouping 15+28 | |
42. | Add It Up: Addition with regrouping 29+16 | |
43. | Add It Up: Addition with regrouping 22+29 | |
44. | Add It Up: Addition with regrouping 54+28 | |
45. | Add It Up: Addition with regrouping 67+27 | |
46. | Add It Up: Addition with regrouping 246+8 | |
47. | Add It Up: Addition with regrouping 289+4 | |
48. | Add It Up: Addition with regrouping 545+8 | |
49. | Add It Up: Addition with regrouping 637+5 | |
50. | Add It Up: Addition with regrouping 124+7 | |
51. | Add board 152+40 | |
52. | Add board 122+46 | |
53. | Add board 173+26 | |
54. | Add board 164+33 | |
55. | Add board 163+32 | |
56. | On the Board 63 + 32 = ** | |
57. | On the Board 63 + 17 = ** | |
58. | Add It Up: Addition with regrouping 45 + 17 | |
59. | Add It Up: Addition with regrouping 63 + 28 | |
60. | Add It Up: Addition with regrouping 34 + 48 | |
61. | Add It Up: Addition with regrouping 29 + 52 | |
62. | Add It Up: Addition with regrouping 46 + 37 | |
63. | Add It Up: Addition with regrouping 63 + 27 | |
64. | Add It Up: Addition with regrouping 34 + 57 | |
65. | Add It Up: Addition with regrouping 34 + 57 | |
66. | Add It Up: Addition with regrouping 55 + 25 | |
67. | Add It Up: Addition with regrouping 28 + 43 | |
68. | Add It Up: Addition with regrouping 968+ 5 | |
69. | Add It Up: Addition with regrouping 457+7 | |
70. | Add It Up: Addition with regrouping 213+9 | |
71. | Add It Up: Addition with regrouping 518+6 | |
72. | Add It Up: Addition with regrouping 812+ 8 | |
73. | Add it up: Addition with regrouping 863+59 | |
74. | Add it up: Addition with regrouping 769+45 | |
75. | Add it up: Addition with regrouping 347+56 | |
76. | Add it up: Addition with regrouping 777+58 | |
77. | Add it up: Addition with regrouping 723+89 | |
78. | Add it up: Addition with regrouping 314+428 | |
79. | Add it up: Addition with regrouping 628+347 | |
80. | Add it up: Addition with regrouping 249+344 | |
81. | Add it up: Addition with regrouping 638+143 | |
82. | Add it up: Addition with regrouping 315+27 | |
83. | Add it up: Addition with regrouping 259+28 | |
84. | Add it up: Addition with regrouping 437+44 | |
85. | Add it up: Addition with regrouping 673+19 | |
86. | Add it up: Addition with regrouping 536+38 | |
87. | Hundreds and hundreds: 643+600=? | |
88. | Hundreds and hundreds: 756+800=? | |
89. | Add it up: 583+228 | |
90. | Add it up: 509+199 | |
91. | Add it up: 341+189 | |
92. | Takeaway board: 17-?=11 | |
93. | Takeaway board: 15-?=11 | |
94. | Takeaway board: 18-? = 12 | |
95. | Takeaway board: 16-? = 13 | |
96. | Takeaway board: 19-? = 14 | |
97. | Takeaway board 87-53 | |
98. | Takeaway board 29-15 | |
99. | Takeaway board 45-21 | |
100. | Takeaway board 77-34 | |
101. | Takeaway board 18-12 | |
102. | Take it away: Subtraction with decomposition 63-9 | |
103. | Take it away: Subtraction with decomposition 45-8 | |
104. | Take it away: Subtraction with decomposition 51-5 | |
105. | Take it away: Subtraction with decomposition 43-7 | |
106. | Take it away: Subtraction with decomposition 34-8 | |
107. | Take it away: Subtraction with decomposition 62-8 | |
108. | Take it away: Subtraction with decomposition 41-6 | |
109. | Take it away: Subtraction with decomposition 63-9 | |
110. | Take it away: Subtraction with decomposition 45-7 | |
111. | Take it away: Subtraction with decomposition 56-9 | |
112. | Take it away: Subtraction with decomposition 45-9 | |
113. | Takeaway board: 65-34 | |
114. | Takeaway board: 48-26 | |
115. | Take it away: Subtraction with decomposition 24 - 18 | |
116. | Take it away: Subtraction with decomposition 52 - 36 | |
117. | Take it away: Subtraction with decomposition 43 - 26 | |
118. | Take it away: Subtraction with decomposition 46 - 28 | |
119. | Take it away: Subtraction with decomposition 71 - 52 | |
120. | Take it away: Subtraction with decomposition 53 - 28 | |
121. | Take it away: Subtraction with decomposition 61 - 13 | |
122. | Take it away: Subtraction with decomposition 25 - 16 | |
123. | Take it away: Subtraction with decomposition 33 - 18 | |
124. | Take it away: Subtraction with decomposition 46 - 27 | |
125. | Take it away 352-18=334 | |
126. | Take it away 472-46=426 | |
127. | Take it away: Subtraction with decomposition 791-338 | |
128. | Take it away: Subtraction with decomposition 874-258 | |
129. | Take it away: Subtraction with decomposition 362-139=? | |
130. | Take it away: Subtraction with decomposition 984-427=? | |
131. | Take it away: Subtraction with decomposition 653-137=? | |
132. | Take it away 271-138 | |
133. | Take it away 583-228 |