Calculating

1. Add Board: *0 + 20 = 100
2. Adding tens: ?+ 36 = 66
3. Adding tens: ?+ 73 = 83
4. Adding tens: ?+ 46 = 86
5. Adding tens: 120 + ? = 140; 120 + 50 = ?
6. Adding tens: 145 + ? = 155, 145 + 30 = ?
7. Adding tens: 138 + ? = 178, 178 + 20 = ?
8. Use the pattern: 2+4, 12+4, 120 + 40
9. Use the pattern: 4+1, 14+1, 140+10
10. Use The Pattern: 4+3, 14+3, 140+30
11. Use The Pattern: 2+7, 12+7, 120+70
12. Use The Pattern: 5+4, 15+4, 150+40
13. Use The Pattern: 3+6, 13+6, 130+60
14. Use The Pattern: 5+3, 15+3, 150+30
15. On The Board 254+100
16. On The Board 458+100
17. On The Board 765+100
18. On The Board 553+100
19. Number detectives: 80+?, 90+?, 40+?=100
20. Number detectives: 10+?, 70+?, 50+?=100
21. 100 Zone: 93 + 10, 94 + 10, 96 + 10
22. 100 Zone: 90 + 10, 92 + 10, 97 + 10
23. 100 Zone: 95 + 10,10 + 95, 105 - 10
24. 100 Zone: 98 + 10,10 + 98, 108 - 10
25. 100 Zone: 99 + 10,109 - 10, 10 + 99
26. Add it up: Addition with trading 52+9
27. Add it up: Addition with trading 46+8
28. Add it up: Addition with trading 22+5
29. Add it up: Addition with trading 26+17
30. Add it up: Addition with trading 38+14
31. Add it up: 69+23
32. Add it up: 46+26
33. Add it up: 37+24
34. Add it up: 28+25
35. Number detectives 235+6 = *
36. Number detectives 98+7=*
37. Add It Up: Addition with regrouping 246+8
38. Add It Up: Addition with regrouping 289+4
39. Add It Up: Addition with regrouping 545+8
40. Add It Up: Addition with regrouping 637+5
41. Add It Up: Addition with regrouping 124+7
42. Use the pattern: 6+3, 60+30, 600+300
43. Use the pattern: 2+4, 20+40, 200+400
44. Use the pattern: 2+6, 20+60, 200+600
45. Use the pattern: 4+9, 40+90, 400+900
46. Use the pattern: 1+7, 10+70, 100+700
47. Add board 152+40
48. Add board 122+46
49. Add board 173+26
50. Add board 164+33
51. Add board 163+32
52. On the Board *8 + 51 = 7*
53. Adding Tens 167 + * = 197
54. Double up & add: Double 9, + 3, + 10
55. Double up & add: Double 10, + 6, + 10
56. Adding Tens: 416 + 50 = *
57. Adding Tens: 542 + 50 = *
58. Add Hundreds: 100+280
59. Add Hundreds: 200+43
60. Adding Tens: * + 726 = 786
61. Adding Tens: * + 314 = 394
62. Number Detectives: 100 Pairs 85 + ?, 75 + ?, 45 +?= 100
63. Add It Up: Addition with regrouping 45 + 17
64. Add It Up: Addition with regrouping 63 + 28
65. Add It Up: Addition with regrouping 34 + 48
66. Add It Up: Addition with regrouping 29 + 52
67. Add It Up: Addition with regrouping 46 + 37
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. True or False?: 12 + 14 = 26
74. True or False?: 19 + 13 = 34
75. True or False?: 17 + 19 = 36
76. True or False?: 14 + 17 = 33
77. True or False?: 12 + 13 = 25
78. Use the pattern: 5+2,50+20, 500+200=?
79. Use the pattern: 5+4,50+40, 500+400=?
80. Use the pattern: 7+1,70+10, 700+100=?
81. Use the pattern: 2+3,20+30, 200+300=?
82. Use the pattern: 3+8,30+80, 300+800=?
83. Same or different:13-4,6+3,12-5,19-8,32-23
84. Same or different:13+6,34-15,43-25,32-13,58-37
85. Mysteries of 30!: 20+?, 15+?, 5+?
86. Mysteries of 30!: 19+?, 10+?, 16+?
87. Mysteries of 30!: 12+?, 13+?, 14+?
88. Mysteries of 30!: 9+?, 5+?, 7+?
89. Mysteries of 30!: 26+?, 28+?, 22+?
90. Number detectives: 65+?, 55+?, 85+?=100
91. Taking Tens: 90 - ? = 70
92. Take it away: Subtraction with decomposition 45-8
93. Take it away: Subtraction with decomposition 43-7
94. Take it away: Subtraction with decomposition 62-8
95. Use the pattern: 9-8, 90-80, 900-800
96. Use the pattern: 5-3, 50-30, 500-300
97. Use the pattern: 8-2, 80-20, 800-200
98. Takeaway board: 3? - 14 = 23
99. Takeaway board: 2? - 13 = 13
100. Takeaway board: 4? - 22 = 27
101. Takeaway board: 6? - 12 = 55
102. Takeaway board: 5? - 26 = 32
103. Take it away: Subtraction with decomposition 24 - 18
104. Takeaway board 152-? = 144
105. Takeaway board 547-? = 538
106. Takeaway board 553-? = 546
107. Takeaway board 291-? 285
108. Takeaway board 742-? = 737
109. Takeaway Board ?9-18 = 71
110. Takeaway Board 67-1?=53
111. Takeaway Board 79-?8=61
112. Takeaway Board ?7-17=50
113. Takeaway Board ?3-21=72
114. True or False: 100 - 47 = 33
115. Use the Pattern: 7-3, 37-3, 167-3=?
116. Use the Pattern: 9-5, 29-5, 249-5=?
117. Use the Pattern: 6-3, 36-3, 166-3=?
118. Use the Pattern: 8-1, 18-1, 128-1=?
119. Use the Pattern: 6-4, 46-4, 286-4=?
120. Hundreds takeaway 350-**=330
121. Hundreds takeaway 875-**=865
122. The Mysteries of 40!: 40-?=32, 40-?=29, 40-?=37
123. The Mysteries of 40!: 40-?=29, 40-?=38, 40-?=39
124. The Mysteries of 40!: 40-?=30, 40-?=33, 40-?=36
125. The Mysteries of 30!: 30-?=26, 30-?=23, 30-?=27
126. The Mysteries of 30!: 30-?=23, 30-?=13, 30-?=3
127. The Mysteries of 30!: 30-?=18, 30-?=15, 30-?=12
128. The Mysteries of 30!: 30-?=14, 30-?=19, 30-?=9
129. Subtraction chains: 30-4-10-8, 30-5-10-7
130. Subtraction chains: 30-4-16-8, 30-5-3-11
131. Subtraction chains: 30-8-6-12, 30-6-3-5
132. Subtraction chains: 30-3-4-13, 30-6-5-7
133. Subtraction chains: 30-10-9-4, 30-5-9-7
134. Take it away: Subtraction with decomposition 53 - 28
135. Take it away: Subtraction with decomposition 61 - 13
136. Take it away: Subtraction with decomposition 25 - 16
137. Take it away: Subtraction with decomposition 33 - 18
138. Take it away: Subtraction with decomposition 46 - 27
139. Same or Different: Answer 43
140. Same or Different: Answer 77
141. Same or Different: Answer 69
142. Same or Different: Answer 56
143. Same or Different: Answer 38
144. Same or Different: Answer 24
145. The Mysteries of 40! 40-14,23,19
146. The Mysteries of 40! 40-8,12,25
147. The Mysteries of 40! 40-20,15,9
148. Number detectives: *x4=12
149. Number detectives: *x5=15
150. Number detectives: *x4=12
151. Number detectives: 5x5=*
152. Number detectives: 4x6=*
153. Number detectives: 2x9=*
154. Number detectives: 3x*=15
155. Number detectives: 4x*=40
156. Number detectives: 2x*=22
157. Times machine: 2, 7, 4 x2
158. Times machine: 2, 4, 6 x3
159. Times machine: 10, 9, 5 x1
160. Times machine: 5, 3, 0 x4
161. Times machine: 2, 0, 3 x2
162. True or False?: 6 x 2 = 3 x 6
163. True or False?: 4 x 3 = 2 x 6
164. True or False?: 10 x 0 = 5 x 0
165. True or False?: 6 x 4 = 2 x 12
166. True or False?: 5 x 6 = 4 x 8
167. True or False?: 10 x 3 = 6 x 5
168. Multiplication chain: 2 x 2 = ? x 3 = ?
169. Multiplication chain: 2 x 5 = ? x 3 = ?
170. Multiplication chain: 6 x 2 = ? x 1 = ?
171. Multiplication chain: 2 x 4 = ? x 2 = ?
172. Multiplication chain: 3 x 3 = ? x 3 = ?
173. Same or different: Click all boxes with the answer 24.
174. Same or different: Click all boxes with the answer 30.
175. Same or different: Click all boxes with the answer 20.
176. Same or different: Click all boxes with the answer 12.
177. Same or different: Click all boxes with the answer 32.
178. Same or different: Click all boxes with the answer 50.
179. Same or different: Click all boxes with the answer 6.
180. Same or different: Click all boxes with the answer 8.
181. Times machine: 5, 9, 4 x 5
182. Times machine: 6, 8, 1 x 4
183. Times machine: 9, 10, 8 x 2
184. Times machine: write the correct multiplier on the times machine
185. Times machine: write the correct multiplier on the times machine
186. Times machine - 2x4, 2x3, 2x0
187. Times machine - 3x4, 3x6, 3x1
188. Times machine - 4x2, 4x10, 4x5
189. Times machine - 5x6, 5x10, 5x2
190. Times machine - 6x0, 6x10, 6x5
191. Times machine - 10x2, 10x3, 10x10
192. Number detectives: ?x4=40
193. Number detectives: ?x2=12
194. True or False: 8x4 = 4x8
195. True or False: 5x4 = 2x10
196. True or False: 8x4 = 6x5
197. True or False: 2x6 = 3x4
198. True or False: 3x5 = 2x8
199. Times Chain - ? x 6 = 12 x 2 = ?
200. Times Chain - ? x 5 = 20 x 3 = ?
201. Times Chain - ? x 2 = 8 x 6 = ?
202. Number Detectives: 2x8
203. Number Detectives: 6x4
204. Number Detectives: 3x?=12
205. Number Detectives: 6x?=36
206. Number production: Put the correct ending on each multiplication sentence
207. Times Machine: Write the correct multiplier into the times machine
208. Double Up: Double 36, 360
209. Double Up: Double 65, 650
210. Double Up: Double 45, 450
211. Double Up: Double 52, 520
212. Division chain - ? / 5 = 10 / 2 = ?
213. Division chain - 32 / 4 = ? / 2 = ?
214. Division chain - ? / 2 = 6 / 3 = ?
215. Division chain - 30 / 2 = ? / 3 = ?
216. My Fair Sharer - write the division setting that made the numbers change
217. My Fair Sharer - setting: 2
218. My Fair Sharer - setting: 10
219. My Fair Sharer - write the division setting that made the numbers change
220. My Fair Sharer - setting: 4
221. My Fair Sharer - 16, 28, 40 / 4
222. My Fair Sharer - 20, 60, 80 / 10
223. My Fair Sharer - 12, 8, 18 / 2
224. My Fair Sharer - 10, 30, 45 / 5
225. My Fair Sharer - 20, 40, 15 / 5
226. Number detectives: ? / 10 = 5
227. Number detectives: ? / 5 = 7
228. Number detectives: 36 / 6 = ?
229. Number detectives: 50 / ? = 5
230. My Fair Sharer: 12, 20, 24 / 2
231. True or False: 12 / 3 = 4
232. True or False: 25 / 5 = 4
233. True or False: 27 / 3 = 9
234. True or False: 18 / 2 = 8
235. My Fair Sharer - write the correct setting on the fair sharer
236. My Fair Sharer - write the correct setting on the fair sharer
237. My Fair Sharer - write the correct setting on the fair sharer
238. True or False: 54/6=6÷54
239. True or False: 12/6=6/12
240. True or False: 40/4=10
241. True or False: 24/4=400
242. True or False: 30/10=3
243. My Fair Sharer: 15, 30, 9 / 3
244. My Fair Sharer: ? ÷ 4 = 5 9 2
245. My Fair Sharer: ? ÷ 4 = 10 9 7
246. My Fair Sharer: ? ÷ 6 = 12 48 24
247. My Fair Sharer: write the correct setting on the fair sharer
248. My Fair Sharer: write the correct setting on the fair sharer
249. My Fair Sharer: write the correct setting on the fair sharer
250. My Fair Sharer: write the correct setting on the fair sharer
251. My Fair Sharer: write the correct setting on the fair sharer
252. True or False: 30/6=5
253. True or False: 24/2=10
254. True or False: 18/3=6
255. True or False: 25/5=6
256. True or False: 20/5=4
257. Divide and multiply 16/2
258. Fair Sharer: put the correct division setting into the fair sharer
259. Divide and Multiply
260. Divide and Multiply
261. Divide and Multiply
262. Divide and Multiply
263. Divide and Multiply
264. Divide and Multiply
265. Divide and Multiply
266. Divide and Multiply
267. My Fair Sharer: write the answers after each number has been divided
268. My Fair Sharer: write the answers after each number has been divided
269. My Fair Sharer: write in the missing numbers that have been divided
270. My Fair Sharer: write the answers after each number has been divided
271. Which Operation? - 60*4 = 56
272. Number Quest - complete number sentence
273. Build A Total - number sequence, 24
274. Number Quest - complete number sentence
275. Crossing 100: Add 70 to 60
276. Crossing 100: Add 60 to 80
277. Crossing 100: Add 90 to 40
278. Crossing 100: Add 50 to 90
279. Crossing 100: Add 50 to 70