Calculating

1. Mystery number: ?+6=512
2. Mystery number: 157+?=163
3. Mystery number: 133+?=146
4. Mystery number: 212+?=224
5. Mystery number: 106+?=118
6. Mystery number: 106+?=118
7. On the Board: *24 + 92= 6**
8. On the Board: **1 + 38= 30*
9. On the Board: *4*+*6=569
10. On the Board: 81*+*6=*09
11. On the Board: 7**+102=*97
12. On the Board: 53*+*2=*29
13. On the Board: 6*+*2=100
14. On the Board: *6+2*=100
15. On the Board: 4*+*7=100
16. Adding Tens: 142+?=182
17. Adding Tens: 30+?=574
18. 100 zone: 796+7,794+8,799+6
19. 100 zone: 593+7,594+8,596+5
20. 100 zone: 693+9,695+8,697+7
21. 100 zone: 392+6,393+7,392+8
22. 100 zone: 196+9,194+7,197+5
23. Add it up: Addition with regrouping 769+45
24. Add it up: Addition with regrouping 777+58
25. Number detectives: 102+98=?
26. Number detectives: 348+103=?
27. Number detectives: 56+92=?
28. Number detectives: 156+104=?
29. Number detectives: 201+99=?
30. Hundreds and hundreds: 657+173=830
31. Hundreds and hundreds: ?64+5?9=90?
32. Hundreds and hundreds: 6?8+157=?2?
33. Hundreds and hundreds: 364+235=?
34. Number detectives: 30+?, 20+?, 10+?=100
35. Number detectives: 82+?, 24+?, 76+?=100
36. Number detectives: 89+?, 21+?, 59+?=100
37. Addition chains 10 multiples
38. Addition chains 10 multiples
39. Addition chains 10 multiples
40. Addition chains 10 multiples
41. Addition chains 10 multiples
42. 100 zone: 295+8=?, 798+?=804, ?+9=405
43. 100 zone: 294+8=?, 396+?=401, ?+4=705
44. 100 zone: 295+9=?, 596+?=602, ?+8=201
45. 100 zone: 399+5=?, 895+7=902, ?+6=503
46. 100 zone: 698+6=704, 292+?=301, ?+8=503
47. Comp. pairs add/subtract: 678+156=834
48. Comp. pairs add/subtract: 246+357=603
49. Comp. pairs add/subtract: 545+328=873
50. Comp. pairs add/subtract: 488+323=811
51. Comp. pairs add/subtract: 493+257=750
52. Add it up: Addition with regrouping 314+428
53. Add it up: Addition with regrouping 628+347
54. Add it up: Addition with regrouping 249+344
55. Add it up: Addition with regrouping 638+143
56. Add it up: Addition with regrouping 773+219
57. Add it up: Addition with regrouping 315+27
58. Add it up: Addition with regrouping 259+28
59. Add it up: Addition with regrouping 437+44
60. Add it up: Addition with regrouping 673+19
61. Add it up: Addition with regrouping 536+38
62. Hundreds and hundreds: 597+600=?
63. Hundreds and hundreds: Complete vertical hundreds addition
64. Hundreds and hundreds: Complete vertical hundreds addition
65. Hundreds and hundreds: 643+600=?
66. Hundreds and hundreds: 756+800=?
67. 100 zone: *+95=500 365+*=400 625+75=*
68. 100 zone: *+185=200 655+*=700 335+65=*
69. 100 zone: *+25=300 445+*=500 895+5=*
70. 100 zone: *+45=400 165+*=200 725+75=*
71. 100 zone: *+85=700 405+*=500 375+25=*
72. Helen at the sweet shop: 40c+25c+30c+50c
73. Same or different: Click all the boxes with the same answer.
74. Same or different: Click all the boxes with the same answer.
75. True or False?: 26+46=72 13+29=44 62+18=80 38+25=53
76. True or False?: 27+18=45 32+39=49 49+27=76 57+26=83
77. True or False?: 19+49=58 48+33=81 24+37=62 64+28=90
78. Number Detectives: Mystery Teens
79. Number Detectives: Mystery Teens
80. Number Detectives: Mystery Teens
81. Number Detectives: Mystery Teens
82. Add it up: 347+454
83. Add it up: 627+277
84. Add it up: 583+228
85. Add it up: 509+199
86. Add it up: 341+189
87. Add it up: 1288+252
88. Add it up: 2273+339
89. Add it up: 6082+889
90. Add it up: 7239+697
91. Scoring decimal points: 19.3+2.3=*1.*
92. Scoring decimal points: *3.6+*.2=25.*
93. Scoring decimal points: 1*.*+2.5=*0.8
94. Scoring decimal points: 2*.2+1.5=*7.*
95. Use The pattern 1.4+1.5, 10.4+10.5, 104+105
96. Use The pattern 1.2+1.7, 10.2+10.7, 102 107
97. Use The pattern 1.4+1.4, 10.4+10.4, 104+104
98. Use The pattern 1.2+1.4, 10.2+10.4, 102+104
99. Add Board: Complete vertical algorithm
100. Scoring Decimal Points: Complete vertical algorithm
101. Scoring Decimal Points: Complete vertical algorithm
102. Scoring Decimal Points: Complete vertical algorithm
103. Scoring Decimal Points: Complete vertical algorithm
104. Scoring Decimal Points: Complete vertical algorithm
105. Decimals get together: 6.7+?=10
106. Decimals get together: 5.8+4.2=?
107. Decimals get together: ?+3.7=10
108. Add it up decimals: 26.7+5.4
109. Add it up decimals: 56.7+7.6
110. Add it up decimals:64.6+8.9=73.5
111. Add it up decimals: 36.5+7.9
112. Add it up decimals: 69.4+7.7
113. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
114. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
115. Scoring Decimal Points: 2*.*+14.9 = *8.5
116. Scoring Decimal Points: *2.4* + 9.*0 = 4*.09
117. Scoring Decimal Points: 7.5* + *.*0 = *2.46
118. Scoring Decimal Points: 8.6* + *.91 = 11.*3
119. Scoring Decimal Points: *.16 + 7.9* = 10.*1
120. Scoring Decimal Points: 4.61 + 6.*3 = **.4*
121. Hundreds takeaway: *53-*7=61*
122. Hundreds takeaway: *42 - 5*9 = 31*
123. Hundreds takeaway: *75 - 2*6 = 10*
124. Hundreds takeaway: *43 - 2*7 = 20*
125. Hundreds takeaway: *82-4*7 = 18*
126. Take Tens: 45-?=35,580-90=?
127. Take Tens: 62-?=22,880-50=?
128. Take Tens: 73-?=53,630-90=?
129. Take Tens: 98-?=18,920-60=?
130. Complem. add/subtract: 652-547=105
131. Complem. add/subtract: 845-69=776
132. Complem. add/subtract: 492-116=376
133. Complem. add/subtract: 831-88=743
134. Complem. add/subtract: 634-97=537
135. Complem. add/subtract: 263-84=179
136. Complem. add/subtract: 751-47=704
137. Complem. add/subtract: 397-59=338
138. Take it away 154-36=118
139. Take it away 763-57=706
140. Take it away 681-29=652
141. Hundreds Takeaway: *00 - 37 = 66*
142. Hundreds Takeaway: *00 - *8 = 352
143. Hundreds Takeaway: 800 - **5 = 45
144. Hundreds Takeaway: *00 - 569 = *1
145. Hundreds Takeaway: *00-26*=35
146. Take tens: 527-?=497
147. Take tens: 849-?=759
148. Take tens: 321-?=251
149. Take tens: 513-?=463
150. Take tens: 655-?=595
151. Take tens: 734-50=?
152. Take tens: 408-90=?
153. Take tens: 978-80=?
154. Take tens: 345-70=?
155. Take tens: 533-60=?
156. Mysteries of 100!: 100-?=77, 100-?=60, 100-?=88
157. Mysteries of 100!: 100-?=45, 100-?=28, 100-?=66
158. Mysteries of 100!: 100-?=40, 100-?=75, 100-?=62
159. Mysteries of 100!: 100-?=19, 100-?=80, 100-?=69
160. Mysteries of 100!: 100-?=76, 100-?=65, 100-?=54
161. Subtraction chains: 87-14-13-15, 98-17-11-6
162. Subtraction chains: 79-14-15-12, 68-17-20-11
163. Subtraction chains: 76-13-12-11, 92-20-12-14
164. Subtraction chains: 94-20-14-11, 65-15-25-15
165. 100 zone: 600-3, 400-5, 200-7
166. 100 zone: 900-9, 700-7, 500-5
167. 100 zone: 700-2, 300-4, 100-6
168. 100 zone: 400-6, 300-4, 200-2
169. 100 zone: 800-8, 600-6, 400-4
170. Laura at sweet shop: $5-($1+25c+5x10c)
171. Carla at sweet shop: $5-(2x10c+20c+4x10c)
172. Take it away: Subtraction with decomposition 791-338
173. Take it away: Subtraction with decomposition 874-258
174. Take it away: Subtraction with decomposition 362-139=?
175. Take it away: Subtraction with decomposition 984-427=?
176. Take it away: Subtraction with decomposition 653-137=?
177. 1000s crossing: 6002-6, 4001-4, 2005-7
178. 1000s crossing: 7002-8, 5004-7, 3003-6,
179. 1000s crossing: 9002-9, 18006-7, 7007-9
180. 1000s crossing: 5001-5, 10003-5, 1004-5
181. 1000s crossing: 8004-7, 13003-8, 4006-9
182. Tens Takeaway: 400-20, 40 less than 480, ?-80=360
183. Tens Takeaway: 500-50, 70 less than 700, ?-90=810
184. Tens Takeaway: 900-30, 10 less than 400, ?-60=40
185. Tens Takeaway: 300-80, 50 less than 700, ?-90=110
186. Tens Takeaway: 600-20, 70 less than 500, ?-30=370
187. Hundreds Takeaway: 658 - *79 = 1*9
188. Hundreds Takeaway: 9*1 - *52 = 1*9
189. Hundreds Takeaway: **1 - 21* = 185
190. Mysteries of 50!: 50-?=46, 36, 26
191. Mysteries of 60!: 60-?=35, 30, 45
192. Mysteries of 60!: 60-?=40, 30, 20
193. Mysteries of 60!: 60-?=32, 28, 16
194. Mysteries of 50!: 50-?=17, 28, 39
195. Mysteries of 50!: 50-?=33, 8, 24
196. Mysteries of 50!: 50-?=34, 25, 14
197. Mysteries of 70!: 70-?=44, 38, 29
198. Mysteries of 70!: 70-?=58, 33, 9
199. Mysteries of 70!: 70-?=28, 35, 43
200. Subtraction Chains
201. Subtraction Chains
202. Subtraction Chains
203. Subtraction Chains
204. Subtraction Chains
205. Subtraction Chains
206. Subtraction Chains
207. Subtraction Chains
208. Subtraction Chains
209. Hundreds and Thousands: 1643 - 788 = *55
210. Decimal Drops: 27.* - 15.3 = 1*.3
211. Decimal Drops: 63.* - 4*.6 = *2.2
212. Decimal Drops: 48.8 - 2*.* = *9.5
213. Decimal Drops: 81.4 - 22.* = *9.2
214. Take it away: 422 - 114 = ?
215. Take it away: 650 - 322 = ?
216. Take it away: 456 - 245 = ?
217. Take it away: 763 - 335 = ?
218. Take it away: 389 - 147 = ?
219. Tenths Crossing: 40.4-0.5, 63.5-0.6, 30.6-0.7
220. Tenths Crossing: 20.2-0.4, 37.7-0.9, 17.5-0.9
221. Tenths Crossing: 26.5-0.8, 55.5-0.9, 74.3-0.7
222. Tenths Crossing: 44.4-0.8, 38.6-0.7, 23.2-0.5
223. Tenths Crossing: 88.5-0.8, 65.3-0.5, 43.6-0.9
224. Same or different: Click all the boxes with the same answer.
225. Same or different: Click all the boxes with the same answer.
226. Same or different: Click all the boxes with the same answer.
227. Subtraction Chains
228. Subtraction Chains
229. Subtraction Chains
230. Subtraction Chains
231. Duncan at the sweet shop: $10-($1+$2+$1.20+$1.20)
232. Scoring Decimal Points: Complete vertical algorithm
233. Scoring Decimal Points: Complete vertical algorithm
234. Scoring Decimal Points: Complete vertical algorithm
235. Scoring Decimal Points: Complete vertical algorithm
236. Scoring Decimal Points: Complete vertical algorithm
237. Mysteries of 20: Decimals
238. Mysteries of 20: Decimals
239. Hit the big times: 31 x 3
240. Hit the big times 42x2
241. Hit the big times: 21 x 4
242. Hit the big times 30x2
243. Number production: Complete each multiplication sentence
244. Number production: Complete each multiplication sentence
245. Number production: Complete each multiplication sentence
246. Chocolate Frenzy: 4 x $4.65
247. Hit the Big times: 259 x 3 =*7*
248. Hit the Big times: 524 x 3= **72
249. Hit the Big times: 628 x 3= 1*8*
250. Number production: Complete each multiplication sentence.
251. Maths production: Complete each multiplication sentence.
252. Maths production: Complete each multiplication sentence.
253. Number production: Complete each multiplication sentence.
254. Double up: Double 24, 2400
255. Double up: Double 16, 1600
256. Double up: Double 99, 990
257. Double up: Double 38, 380
258. Double up: Double 50, 50 000
259. Same or different: Click all the boxes where the answer is the same.
260. Same or different: Click all the boxes where the answer is the same.
261. Same or different: Click all the boxes where the answer is the same.
262. Same or different: Click all the boxes where the answer is the same.
263. Same or different: Click all the boxes where the answer is the same.
264. Multiplication simplification: 42 x 16
265. Multiplication simplification: 34 x 12
266. Multiplication simplification: 29x24
267. Multiplication simplification: 42 x 24
268. Multiplication simplification: 26 x 16
269. Same or Different: Click all the boxes with the same answer.
270. Same or Different: Click all the boxes with the same answer.
271. Multiplication Simplification: 48x16
272. Multiplication Simplification: 88x24
273. Division Chain: 90 / 3 = ?, / 10 = ?
274. Division Chain: 100 / 5 = ?, / 2 = ?
275. My Fair Sharer: 12, 300, 9 / 3
276. My Fair Sharer: 100, 24, 28 / 4
277. My Fair Sharer: 250, 40, 100 / 5
278. My Fair Sharer: 240, 120, 360 / 10
279. Divide and Multiply
280. Divide and Multiply
281. My Fair Sharer: write the answers after each number has been divided
282. Number detectives: ? / 7 = 60
283. Number detectives: 250/5=?
284. Number detectives: 320/?=80
285. Number detectives: 270/?=90
286. Same or different: Click all the boxes where the answer is the same.
287. Same or different: Click all the boxes where the answer is the same.
288. Same or different: Click all the boxes where the answer is the same.
289. Same or different: Click all the boxes where the answer is the same.
290. Same or different: Click all the boxes where the answer is the same.
291. Divide and multiply - 8, 480
292. Divide and multiply - 80, 400
293. Divide and multiply - 8,720
294. Divide and multiply - 40, 320
295. Divide and multiply - 30, 210
296. My Fair Sharer - 6, 240, 90, 72
297. My Fair Sharer - 720, 88, 3, 60
298. The Great Divide: Complete each division sentence
299. The Great Divide: Complete each division sentence
300. The Great Divide: Complete each division sentence
301. The Great Divide: Complete each division sentence
302. The Great Divide: Complete each division sentence
303. Same or different: Click all the boxes where the answer is the same
304. Same or different: Click all the boxes where the answer is the same.
305. Same or different: Click all the boxes where the answer is the same.
306. Same or different: Click all the boxes where the answer is the same.
307. Same or different: Click all the boxes where the answer is the same.
308. Divide and multiply: 64 / 8
309. Divide and multiply 240/6
310. Fair Sharer /4
311. Fair Sharer /6
312. Fair Sharer /9
313. My Fair Sharer: Write the correct division setting on the fair sharer
314. Fair Sharer: Write the correct division setting on the fair sharer
315. Divide a hundred 360/*=9 120/3=*
316. Divide a hundred 270/*=3 420/6=*
317. Division Chains
318. Division Chains
319. Division Chains
320. Cash for cakes: 36.80 /4
321. Number Quest - complete number sentence
322. All Things Equal - equivalent to 7 + 7
323. Number Quest - complete number sentence
324. Number Quest - complete number sentence
325. Use the pattern: 4 x 16 = 4 x 10 + 4 x 6
326. Use the pattern: 4 x 23 = 4 x 20 + 4 x 3
327. Use the pattern: 8x43 = 8x40 + 8x3
328. Use the pattern: 5 x 35 = 5 x 30 + 5 x 5
329. Use the pattern: 9x63 = 9x60 + 9x3
330. Use the pattern: 6x84 = 6x80 + 6x4
331. Use the pattern: 4x73 = 4x70 + 4x3
332. Use the pattern: 5x44 = 5x40 + 5x4
333. Use the pattern: 8x62 = 8x60 + 8x2
334. Use the pattern: 3x64 = 3x60 + 3x4
335. Use the pattern: 7x56 = 7x50 + 7x6
336. Use the pattern: 6x78 = 6x70 + 6x8
337. Decimals get together: 7.6+?=10
338. Decimals get together: 2.7+7.3=?
339. Decimals get together: ?+1.1=10
340. Decimals get together: 5.4+?=10
341. Decimals get together: 4.7+5.3=?
342. Decimals get together: ?+5.7=10
343. Decimals get together: 3.8+?=10
344. Decimals get together: 3.4+6.6=?
345. Decimals get together: ?+7.1=10
346. Decimals get together: 5.9+?=10
347. Decimals get together: 3.7+6.3=?
348. Decimals get together: ?+6.7=10
349. Same or different: Click all the boxes where the answer is the same
350. Build A Total - number sequence, 40
351. Build A Total - number sequence, 50
352. Build A Total - number sequence, 55
353. Build A Total - number sequence, 44
354. Build A Total - number sequence, 36
355. Build A Total - number sequence, 23
356. Build A Total - number sequence, 28
357. Build A Total - number sequence, 32
358. Deepa at the shop: $2 - (40c + 70c)
359. Sarah at the shop: $2 - (40c + 30c + 50c + 5c)
360. Tina at the shop: $2 - (60c + 45c + 25c + 30c)