4.NBT.4
Fluently add and subtract multi-digit whole numbers using the standard algorithm.
1. | Adding tens: 24 + ? = 64, 24 + 50 = ? | |
2. | Adding tens: 57 + ? = 97, 57 + 20 = ? | |
3. | Number detectives: 25+?, 35+?, 55+? =100 | |
4. | Number detectives: 5+?, 45+?, 15+?=100 | |
5. | 100 Zone: 70 + 40 = ? 90 + ? = 110, ? + 80 = 110 | |
6. | 100 Zone: 60 + 80 = ? 90 + ? = 140, ? + 100 = 140 | |
7. | 100 Zone: 70 + 80 = ? 100 + ? = 150, ? + 70 = 150 | |
8. | 100 Zone: 90 + 70 = ? 80 + ? = 160, ? + 60 = 160 | |
9. | Add it up: 58+34 | |
10. | Number detectives 485+*= 493 | |
11. | Number detectives 515+*= 523 | |
12. | Add It Up: Addition with regrouping 15+28 | |
13. | Add It Up: Addition with regrouping 29+16 | |
14. | Add It Up: Addition with regrouping 22+29 | |
15. | Add It Up: Addition with regrouping 54+28 | |
16. | Add It Up: Addition with regrouping 67+27 | |
17. | Number Detectives: 100 Pairs ? + 79 = 100 | |
18. | Number Detectives: 100 Pairs ? + 51 = 100 | |
19. | Number Detectives: 100 Pairs 63 + 37 = ? | |
20. | Number Detectives: 100 Pairs 88 + ? = 100 | |
21. | Use the pattern: 4+9, 40+90, 400+900 | |
22. | On the Board 45 + 3* = *7 | |
23. | On the Board 3* + *5 = 98 | |
24. | On the Board 4* + 42 = *9 | |
25. | On the Board 3* + 62 = *6 | |
26. | On the Board 8* + *6 = 98 | |
27. | Make 400: 200+100+? | |
28. | Make 500: 100+200+? | |
29. | Make 600: 50+550+? | |
30. | Make 700: 350+125+? | |
31. | Make 800: 125+225+? | |
32. | Make 900: 275+375+? | |
33. | On the Board 63 + 32 = ** | |
34. | On the Board 33 + *5 = 7* | |
35. | On the Board 63 + 17 = ** | |
36. | Add Hundreds: 600+ * = 946 | |
37. | Add Hundreds: 200+ * = 580 | |
38. | Add Hundreds: 400+ * = 963 | |
39. | Add Hundreds: 100+ * = 319 | |
40. | Add Hundreds: 300+ * = 565 | |
41. | Add Hundreds: 500+246 | |
42. | Add Hundreds: 300+453 | |
43. | Add Hundreds: 800+163 | |
44. | Add Hundreds: * + 300 = 330 | |
45. | Add Hundreds: * + 200 = 241 | |
46. | Add Hundreds: * + 800 = 819 | |
47. | Add Hundreds: * + 300 = 345 | |
48. | Add Hundreds: * + 200 = 295 | |
49. | The Nine Family: 53 + 9, + 19 + 29 | |
50. | The Nine Family: 47 + 9, + 19 + 29 | |
51. | The Nine Family: 38 + 9, + 19 + 29 | |
52. | The Nine Family: 55 + 9, + 19, + 29 | |
53. | The Nine Family: 42 + 9, + 19, + 29 | |
54. | Add It Up: Addition with regrouping 63 + 27 | |
55. | Add It Up: Addition with regrouping 34 + 57 | |
56. | Add It Up: Addition with regrouping 34 + 57 | |
57. | Add It Up: Addition with regrouping 55 + 25 | |
58. | Add It Up: Addition with regrouping 28 + 43 | |
59. | Mystery number: ?+7=252 | |
60. | Mystery number: ?+6=174 | |
61. | Mystery number: ?+7=451 | |
62. | Mystery number: ?+6=512 | |
63. | Mystery number: ?+6+163 | |
64. | Mystery number: 106+11=? | |
65. | Mystery number: 514+12=? | |
66. | Mystery number: 913+13=? | |
67. | Mystery number: 711+17=? | |
68. | Mystery number: 133+16=? | |
69. | Mystery number: 157+?=163 | |
70. | Mystery number: 133+?=146 | |
71. | Mystery number: 212+?=224 | |
72. | Mystery number: 106+?=118 | |
73. | Mystery number: 106+?=118 | |
74. | Use the pattern: 3+8,30+80, 300+800=? | |
75. | Same or different:44-8,14+23,22+18,19+17,54-18 | |
76. | Same or different:43-7,21+17,13+22,18+16,53-17 | |
77. | On the Board: *24 + 92= 6** | |
78. | On the Board: **1 + 38= 30* | |
79. | On the Board: *4*+*6=569 | |
80. | On the Board: 81*+*6=*09 | |
81. | On the Board: *52+10*=3*8 | |
82. | On the Board: *8*+91=*78 | |
83. | On the Board: 7**+102=*97 | |
84. | On the Board: *46+*2=43* | |
85. | On the Board: 53*+*2=*29 | |
86. | On the Board: *6*+73=5*6 | |
87. | On the Board: 6*+*2=100 | |
88. | On the Board: *6+2*=100 | |
89. | On the Board: 4*+*7=100 | |
90. | On the Board: *4+7*=100 | |
91. | On the Board: *4+3*=100 | |
92. | Adding Tens: 142+?=182 | |
93. | Adding Tens: 30+?=574 | |
94. | Adding Tens: 235+50 =? | |
95. | Adding Tens: 338+50=? | |
96. | Adding Tens: 562+30=? | |
97. | Adding Tens: ?+30=492 | |
98. | 100 zone: 796+7,794+8,799+6 | |
99. | 100 zone: 593+7,594+8,596+5 | |
100. | 100 zone: 693+9,695+8,697+7 | |
101. | 100 zone: 392+6,393+7,392+8 | |
102. | 100 zone: 196+9,194+7,197+5 | |
103. | Complem. add/subtract: 136+419=555 | |
104. | Complem. add/subtract: 216+84=300 | |
105. | Complem. add/subtract: 112+32=144 | |
106. | Complem. add/subtract: 125+14=139 | |
107. | Complem. add/subtract: 105+24=129 | |
108. | Complem. add/subtract: 210+14=224 | |
109. | Add it up: Addition with regrouping 863+59 | |
110. | Add it up: Addition with regrouping 769+45 | |
111. | Add it up: Addition with regrouping 347+56 | |
112. | Add it up: Addition with regrouping 777+58 | |
113. | Add it up: Addition with regrouping 723+89 | |
114. | True or False?: 47+15=65 | |
115. | True or False?: 38+14=52 | |
116. | True or False?: 56+17=73 | |
117. | True or False?: 29+12=46 | |
118. | True or False?: 55+17=72 | |
119. | Number detectives: 102+98=? | |
120. | Number detectives: 348+103=? | |
121. | Number detectives: 56+92=? | |
122. | Number detectives: 156+104=? | |
123. | Number detectives: 201+99=? | |
124. | Same or Different: Answer 62 | |
125. | Same or Different: Answer 58 | |
126. | Same or Different: Answer 44 | |
127. | Same or Different: Answer 66 | |
128. | Same or Different: Answer 73 | |
129. | Hundreds and hundreds: 42?+3?8=79? | |
130. | Hundreds and hundreds: 657+173=830 | |
131. | Hundreds and hundreds: ?64+5?9=90? | |
132. | Hundreds and hundreds: 6?8+157=?2? | |
133. | Hundreds and hundreds: 17?+?23=2?7 | |
134. | Hundreds and hundreds: 364+235=? | |
135. | Number detectives: 30+?, 20+?, 10+?=100 | |
136. | Number detectives: 82+?, 24+?, 76+?=100 | |
137. | Number detectives: 89+?, 21+?, 59+?=100 | |
138. | Addition chains 10 multiples | |
139. | Addition chains 10 multiples | |
140. | Addition chains 10 multiples | |
141. | Addition chains 10 multiples | |
142. | Addition chains 10 multiples | |
143. | 100 zone: 295+8=?, 798+?=804, ?+9=405 | |
144. | 100 zone: 294+8=?, 396+?=401, ?+4=705 | |
145. | 100 zone: 295+9=?, 596+?=602, ?+8=201 | |
146. | 100 zone: 399+5=?, 895+7=902, ?+6=503 | |
147. | 100 zone: 698+6=704, 292+?=301, ?+8=503 | |
148. | Comp. pairs add/subtract: 678+156=834 | |
149. | Comp. pairs add/subtract: 246+357=603 | |
150. | Comp. pairs add/subtract: 545+328=873 | |
151. | Comp. pairs add/subtract: 488+323=811 | |
152. | Comp. pairs add/subtract: 493+257=750 | |
153. | Add it up: Addition with regrouping 314+428 | |
154. | Add it up: Addition with regrouping 628+347 | |
155. | Add it up: Addition with regrouping 249+344 | |
156. | Add it up: Addition with regrouping 638+143 | |
157. | Add it up: Addition with regrouping 773+219 | |
158. | Add it up: Addition with regrouping 315+27 | |
159. | Add it up: Addition with regrouping 259+28 | |
160. | Add it up: Addition with regrouping 437+44 | |
161. | Add it up: Addition with regrouping 673+19 | |
162. | Add it up: Addition with regrouping 536+38 | |
163. | Hundreds and hundreds: 597+600=? | |
164. | Hundreds and hundreds: Complete vertical hundreds addition | |
165. | Hundreds and hundreds: Complete vertical hundreds addition | |
166. | Hundreds and hundreds: 643+600=? | |
167. | Hundreds and hundreds: 756+800=? | |
168. | 100 zone: *+95=500 365+*=400 625+75=* | |
169. | 100 zone: *+185=200 655+*=700 335+65=* | |
170. | 100 zone: *+25=300 445+*=500 895+5=* | |
171. | 100 zone: *+45=400 165+*=200 725+75=* | |
172. | 100 zone: *+85=700 405+*=500 375+25=* | |
173. | True or False?: 36+49=85 | |
174. | True or False?: 62+29=81 | |
175. | True or False?: 12+8=17+4 | |
176. | True or False?: 63+8=65+6 | |
177. | True or False?: 11+8=13+7 | |
178. | True or False?: 26+7=29+4 | |
179. | True or False?: 37+8=39+7 | |
180. | Same or different: Click all the boxes with the same answer. | |
181. | Same or different: Click all the boxes with the same answer. | |
182. | Same or different: Click all the boxes with the same answer. | |
183. | Same or different: Click all the boxes with the same answer. | |
184. | Same or different: Click all the boxes with the same answer. | |
185. | True or False?: 26+46=72 13+29=44 62+18=80 38+25=53 | |
186. | True or False?: 27+18=45 32+39=49 49+27=76 57+26=83 | |
187. | True or False?: 19+49=58 48+33=81 24+37=62 64+28=90 | |
188. | Number Detectives: Mystery Teens | |
189. | Number Detectives: Mystery Teens | |
190. | Number Detectives: Mystery Teens | |
191. | Number Detectives: Mystery Teens | |
192. | Number Detectives: Mystery Teens | |
193. | 100 Zone: 180+30, 270+50, 40+330 | |
194. | 100 Zone: 568+30, 623+20, 60+480 | |
195. | 100 Zone: 372+20, 638+50, 110+40 | |
196. | 100 Zone: 263+20, 390+30, 70+680 | |
197. | 100 Zone: 890+50, 329+30, 50+440 | |
198. | Complementary pairs: 347+454=801 | |
199. | Complementary pairs: 482+395=877 | |
200. | Complementary pairs: 278+596=874 | |
201. | Complementary pairs: 532+209=741 | |
202. | Complementary pairs: 627+277=904 | |
203. | Add it up: 347+454 | |
204. | Add it up: 627+277 | |
205. | Add it up: 583+228 | |
206. | Add it up: 509+199 | |
207. | Add it up: 341+189 | |
208. | Add it up: 1288+252 | |
209. | Add it up: 2273+339 | |
210. | Add it up: 6082+889 | |
211. | Add it up: 5346+369 | |
212. | Add it up: 7239+697 | |
213. | Add board: 140*+8*0=*229 | |
214. | Add board: *7*0+458=2*5* | |
215. | Add board: 15*5+60*=2*55 | |
216. | Add board: 1*88+4*0=*10* | |
217. | Adding Hundreds 136+*=536 566+200=* 300m/t264=* | |
218. | Adding Hundreds 532+*=732 328+500=* 600m/t119=* | |
219. | Adding 105 254+*=250 421+105=* 105m/t101=* | |
220. | Hundreds to Add - 562+*=667 263+105=* 105m/t714=* | |
221. | Hundreds to Add - 365+*=470 532=105=637 105m/t283=* | |
222. | Add Board: Complete vertical algorithm | |
223. | Hundreds and Hundreds: Complete vertical algorithm | |
224. | Hundreds and Hundreds: Complete vertical algorithm | |
225. | Hundreds and Hundreds: Complete vertical algorithm | |
226. | True or False? Click all the number sentences that are true. | |
227. | True or False? Click all the number sentences that are true. | |
228. | True or False? Click all the number sentences that are true. | |
229. | True or False? Click all the number sentences that are true. | |
230. | True or False? Click all the number sentences that are true. | |
231. | Add these 3 numbers: 80 + 70 + 40 | |
232. | Add these 3 numbers: 90 + 60 + 30 | |
233. | Add these 3 numbers: 40 + 70 + 20 | |
234. | Add these 3 numbers: 30 + 20 + 90 | |
235. | Add these 3 numbers: 70 + 90 + 10 | |
236. | True or False? 10-7=20-7 | |
237. | True or False? 15-2=2-15 | |
238. | True or False? 10-2=11-3 | |
239. | True or False? 9-5=8-4 | |
240. | Take it away: Subtraction with decomposition 63-9 | |
241. | Take it away: Subtraction with decomposition 51-5 | |
242. | Take it away: Subtraction with decomposition 34-8 | |
243. | Take it away: Subtraction with decomposition 41-6 | |
244. | Take it away: Subtraction with decomposition 63-9 | |
245. | Take it away: Subtraction with decomposition 45-7 | |
246. | Take it away: Subtraction with decomposition 56-9 | |
247. | Take it away: Subtraction with decomposition 45-9 | |
248. | True or False?: 12 - 2 = 15 - 5 | |
249. | True or False?: 28 - 8 = 30 - 10 | |
250. | True or False?: 25 - 5 = 25 - 5 | |
251. | True or False?: 15 - 5 = 30 - 20 | |
252. | True or False?: 30 - 5 = 28 - 3 | |
253. | Take it away: Subtraction with decomposition 52 - 36 | |
254. | Take it away: Subtraction with decomposition 43 - 26 | |
255. | Take it away: Subtraction with decomposition 46 - 28 | |
256. | Take it away: Subtraction with decomposition 71 - 52 | |
257. | Eleven family: Subtract 1, 11 & 21 from 5 | |
258. | Eleven family: Subtract 1, 11 & 41 from 85 | |
259. | Eleven family: Subtract 1, 11 & 31 from 77 | |
260. | Eleven family: Subtract 1, 11 & 21 from 68 | |
261. | Eleven family: Subtract 1, 11 & 71 from 96 | |
262. | Changing Numbers 84 to 63 | |
263. | Changing Numbers 100 to 44 | |
264. | Changing Numbers 40 to 24 | |
265. | Changing Numbers 124 to 98 | |
266. | True or False: 200 - 28 = 172 | |
267. | True or False: 30 + 16 - 4 = 44 | |
268. | True or False: 30 + 16 - 4 = 42 | |
269. | True or False: 30 + 16 - 4 = 46 | |
270. | Subtracting tens: 86 - ? = 56 | |
271. | Subtracting tens: 94 - ? = 24 | |
272. | Changing numbers 683-554 | |
273. | Changing numbers 257-138 | |
274. | Changing numbers 884-763 | |
275. | Changing numbers 576-557 | |
276. | Changing numbers 794-683 | |
277. | Changing numbers 461-432 | |
278. | The Mysteries of 50! 50-35,12,6 | |
279. | The Mysteries of 50! 50-16,21,30 | |
280. | Take Tens: 67-?=47,430-70=? | |
281. | Take Tens: 71-?=21,250-30=? | |
282. | Take Tens: 66-?=36,360-80=? | |
283. | Take Tens: 94-?=54,740-20=? | |
284. | Take Tens: 89-?=19,460-50=? | |
285. | Take Tens: 86-?=26,170-40=? | |
286. | Take Tens: 45-?=35,580-90=? | |
287. | Take Tens: 62-?=22,880-50=? | |
288. | Take Tens: 73-?=53,630-90=? | |
289. | Take Tens: 98-?=18,920-60=? | |
290. | Complem. add/subtract: 652-547=105 | |
291. | Complem. add/subtract: 845-69=776 | |
292. | Complem. add/subtract: 492-116=376 | |
293. | Complem. add/subtract: 831-88=743 | |
294. | Complem. add/subtract: 634-97=537 | |
295. | Complem. add/subtract: 263-84=179 | |
296. | Complem. add/subtract: 751-47=704 | |
297. | Complem. add/subtract: 397-59=338 | |
298. | Take it away 352-18=334 | |
299. | Take it away 154-36=118 | |
300. | Take it away 763-57=706 | |
301. | Take it away 681-29=652 | |
302. | Take it away 472-46=426 | |
303. | Same or Different: Answer 42 | |
304. | Same or Different: Answer 50 | |
305. | Same or Different: Answer 85 | |
306. | Same or Different: Answer 76 | |
307. | Same or Different: Answer 24 | |
308. | Same or Different: Answer 60 | |
309. | Same or Different: Answer 32 | |
310. | Same or Different: Answer 45 | |
311. | Same or Different: Answer 21 | |
312. | Same or Different: Answer 55 | |
313. | Mysteries of 100!: 100-?=77, 100-?=60, 100-?=88 | |
314. | Mysteries of 100!: 100-?=45, 100-?=28, 100-?=66 | |
315. | Mysteries of 100!: 100-?=40, 100-?=75, 100-?=62 | |
316. | Mysteries of 100!: 100-?=19, 100-?=80, 100-?=69 | |
317. | Mysteries of 100!: 100-?=76, 100-?=65, 100-?=54 | |
318. | Subtraction chains: 87-14-13-15, 98-17-11-6 | |
319. | Subtraction chains: 79-14-15-12, 68-17-20-11 | |
320. | Subtraction chains: 76-13-12-11, 92-20-12-14 | |
321. | Subtraction chains: 94-20-14-11, 65-15-25-15 | |
322. | 100 zone: 600-3, 400-5, 200-7 | |
323. | 100 zone: 900-9, 700-7, 500-5 | |
324. | 100 zone: 700-2, 300-4, 100-6 | |
325. | 100 zone: 400-6, 300-4, 200-2 | |
326. | 100 zone: 800-8, 600-6, 400-4 | |
327. | Take it away: Subtraction with decomposition 791-338 | |
328. | Take it away: Subtraction with decomposition 874-258 | |
329. | Take it away: Subtraction with decomposition 362-139=? | |
330. | Take it away: Subtraction with decomposition 984-427=? | |
331. | Take it away: Subtraction with decomposition 653-137=? | |
332. | True or False?: 15-9=11-7 | |
333. | True or False?: 12-8=11-7 | |
334. | True or False?: 25-4=26-2 | |
335. | True or False?: 99-66=44-11 | |
336. | True or False?: 73-3=93-20 | |
337. | True or False?: 44-4=60-20 | |
338. | True or False?: 50-5=90-45 | |
339. | True or False?: 36-7=20-8 | |
340. | True or False?: 35-15=40-20 | |
341. | True or False?: 80-60=44-24 | |
342. | Mysteries of 50!: 50-?=46, 36, 26 | |
343. | Mysteries of 60!: 60-?=35, 30, 45 | |
344. | Mysteries of 60!: 60-?=40, 30, 20 | |
345. | Mysteries of 60!: 60-?=32, 28, 16 | |
346. | Mysteries of 50!: 50-?=17, 28, 39 | |
347. | Mysteries of 50!: 50-?=33, 8, 24 | |
348. | Mysteries of 50!: 50-?=34, 25, 14 | |
349. | Mysteries of 70!: 70-?=44, 38, 29 | |
350. | Mysteries of 70!: 70-?=58, 33, 9 | |
351. | Mysteries of 70!: 70-?=28, 35, 43 | |
352. | Subtraction Chains | |
353. | Subtraction Chains | |
354. | Subtraction Chains | |
355. | Subtraction Chains | |
356. | Subtraction Chains | |
357. | Subtraction Chains | |
358. | Subtraction Chains | |
359. | Subtraction Chains | |
360. | Subtraction Chains | |
361. | Subtraction Chains | |
362. | Hundreds and Thousands: 1643 - 788 = *55 | |
363. | Hundreds and Thousands: *782 - *3* = 18*6 | |
364. | 100 zone: 105-15, 306-8, 109-10 | |
365. | 100 zone: 304-7, 400-15, 401-5 | |
366. | 100 zone: 400-6, 400-9, 400-11 | |
367. | 100 zone: 402-5, 312-15, 314-15 | |
368. | 100 zone: 108-9, 111-12, 106-7 | |
369. | Take it away: 422 - 114 = ? | |
370. | Take it away: 650 - 322 = ? | |
371. | Take it away: 456 - 245 = ? | |
372. | Take it away: 763 - 335 = ? | |
373. | Take it away: 389 - 147 = ? | |
374. | Same or different: Click all the boxes with the same answer. | |
375. | Same or different: Click all the boxes with the same answer. | |
376. | Same or different: Click all the boxes with the same answer. | |
377. | Same or different: Click all the boxes with the same answer. | |
378. | Same or different: Click all the boxes with the same answer. | |
379. | Subtraction Chains | |
380. | Subtraction Chains | |
381. | Subtraction Chains | |
382. | Subtraction Chains | |
383. | Take it away 271-138 | |
384. | Take it away 692-459 | |
385. | Take it away 942-513 | |
386. | Take it away 794-387 | |
387. | Take it away 583-228 | |
388. | Sum In A Circle - numbers in each groups total 15 | |
389. | Which Operation? - 95*5=90 | |
390. | All Things Equal - equivalent to 7 + 7 | |
391. | Sum In A Circle - numbers in each group total 15 | |
392. | Which Operation? - 63*28 = 91 | |
393. | Build A Total - number sequence, 45 | |
394. | Build A Total - number sequence, 30 | |
395. | Pick a Number 2 - organise data | |
396. | The Chicken Story: seventy-seven + twelve | |
397. | The Chicken Story: thirty-nine + twelve | |
398. | The Chicken Story: thirty-six + fourteen | |
399. | The Chicken Story: forty-one + seventeen | |
400. | The Chicken Story: thirteen + nineteen | |
401. | 1000 less, 1000 more than 4215 | |
402. | 1000 less, 1000 more than 3690 | |
403. | 1000 less, 1000 more than 1001 | |
404. | 1000 less, 1000 more than 4035 | |
405. | 10 less, 100 more than 4508 | |
406. | 100 less, 10 more than 6577 | |
407. | 100 less, 1000 more than 2231 | |
408. | 100 less, 100 more than 7323 | |
409. | 1000 less, 1 more than 7999 | |
410. | 100 less, 100 more than 4900 | |
411. | 10 less, 10 more than 5990 | |
412. | 1000 less, 1000 more than 1900 | |
413. | 100 less, 1 more than 5999 | |
414. | 1000 less, 1 more than 8799 | |
415. | 100 less, 1000 more than 5000 | |
416. | Changing Numbers - 2458 to 2558 | |
417. | 1 less, 1000 more than 8000 | |
418. | 1000 less, 100 more than 6995 | |
419. | 100 less, 1000 more than 1795 | |
420. | 1000 less, 100 more than 1000 | |
421. | 1000 less, 100 more than 4035 | |
422. | Changing Numbers - 4 to 4000 | |
423. | Changing Numbers - 4323 to 4423 | |
424. | Changing Numbers - 9906 to 9996 | |
425. | Changing Numbers - 8999 to 9000 | |
426. | 1000 less, 10 more than 8712 | |
427. | Changing Numbers - 7899 to 7909 | |
428. | 1000 less, 100 more than 4550 | |
429. | 1000 less, 100 more than 6793 | |
430. | 1000 less, 1 more than 3589 | |
431. | 10 less, 100 more than 5302 | |
432. | Changing Numbers - 820 to 1820 | |
433. | Changing Numbers - 1040 to 1140 | |
434. | 1000 less, 100 more than 1643 | |
435. | 1 less, 10 more than 4000 | |
436. | Changing Numbers - 1240 to 1250 | |
437. | Changing Numbers - 2943 to 1943 | |
438. | Changing Numbers: Add 1000, 10 000, 100 000 to 423 846 | |
439. | Changing Numbers: Add 100, 1000, 10 000 to 78 244 | |
440. | Changing Numbers: Add 10, 100, 1000 to 6789 | |
441. | 1000 less, 1000 more than 45 369 | |
442. | 1000 less, 1000 more than 75 258 | |
443. | 10 000 less, 10 000 more than 44 987 | |
444. | Changing Numbers: Add 10, 100, 1000 to 2345 | |
445. | Changing Numbers: Add 100, 1000, 10 000 to 33 125 | |
446. | Changing Numbers: Add 1000, 10 000, 100 000 to 213 426 | |
447. | 100 less, 100 more than 69 582 | |
448. | 1000 less, 1000 more than 69 855 | |
449. | 1000 less, 100 more than 5 268 635 | |
450. | 100 less, 1000 more than 453 369 | |
451. | 1000 less, 10 more than 317 691 | |
452. | 1000 less, 1000 more than 212 673 | |
453. | Hundreds takeout 697-**=614 | |
454. | Hundreds takeout 457-**=425 | |
455. | Hundreds takeout 596-**=543 | |
456. | Hundreds takeout 997-**=971 | |
457. | Hundreds Takeout: 5*9-35*=*11 | |
458. | Hundreds Takeout: *8*-2*2=132 | |
459. | Hundreds Takeout: *1*-5*4=414 | |
460. | Hundreds Takeout: **2-43*=362 | |
461. | Hundreds Takeout: 6*2-32* = *21 | |
462. | Hundreds Takeout: *00 - 26* = 35 | |
463. | Hundreds takeout: *82 - 4*7 = 18* | |
464. | Hundreds takeout: *43 - 2*7 = 20* | |
465. | Hundreds takeout: *75 - 2*6 = 10* | |
466. | Hundreds takeout: *42 - 5*9 = 31* | |
467. | Hundreds takeout: *53 - *7 = 61* | |
468. | Use the pattern: 60 - 2, 600 - 20, 6,000 - 200 | |
469. | Use the pattern: 40 - 6, 400 - 60, 4,000 - 600 | |
470. | Use the pattern: 50 - 9, 500 - 90, 5,000 - 900 | |
471. | Use the pattern: 80 - 5, 800 - 50, 8,000 - 500 | |
472. | Use the pattern: 90 - 8, 900 - 80, 9,000 - 800 | |
473. | Subtracting tens: 655 - ? = 595 | |
474. | Subtracting tens: 513 - ? = 463 | |
475. | Subtracting tens: 321 - ? = 251 | |
476. | Subtracting tens: 849 - ? = 759 | |
477. | Subtracting tens: 527 - ? = 497 | |
478. | Hundreds Takeout: *00 - 37 = 66* | |
479. | Hundreds Takeout: *00 - *8 = 352 | |
480. | Hundreds Takeout: 800 - **5 = 45 | |
481. | Hundreds Takeout: *00 - 569 = *1 | |
482. | Tens Takeout: 400-20, 40 less than 480, ?-80=360 | |
483. | Tens Takeout: 500-50, 70 less than 700, ?-90=810 | |
484. | Tens Takeout: 900-30, 10 less than 400, ?-60=40 | |
485. | Tens Takeout: 300-80, 50 less than 700, ?-90=110 | |
486. | Tens Takeout: 600-20, 70 less than 500, ?-30=370 | |
487. | Subtracting tens: 734-50=? | |
488. | Subtracting tens: 408-90=? | |
489. | Subtracting tens: 978-80=? | |
490. | Subtracting tens: 345-70=? | |
491. | Subtracting tens: 533-60=? | |
492. | 1,000s crossing: 6,002-6, 4,001-4, 2,005-7 | |
493. | 1,000s crossing: 7,002-8, 5,004-7, 3,003-6 | |
494. | 1,000s crossing: 9,002-9, 18,006-7, 7,007-9 | |
495. | 1,000s crossing: 5,001-5, 10,003-5, 1,004-5 | |
496. | 1,000s crossing: 8,004-7, 13,003-8, 4,006-9 | |
497. | Write the missing number: 650+100+?=1,000 | |
498. | Write the missing number: 250+50+?=1,000 | |
499. | Write the missing number: 500+450+?=1,000 | |
500. | Write the missing number: 600+50+?=1,000 | |
501. | Write the missing number: 750+100+?=1,000 | |
502. | Hundreds Takeout: 658 - *79 = 1*9 | |
503. | Hundreds Takeout: 9*1 - *52 = 1*9 | |
504. | Hundreds Takeout: **1 - 21* = 185 | |
505. | Number Quest - complete number sentence | |
506. | Build A Total - number sequence, 25 | |
507. | Build A Total - number sequence, 35 | |
508. | Build A Total - number sequence, 55 | |
509. | Build A Total - number sequence, 40 | |
510. | Build A Total - number sequence, 50 | |
511. | Build A Total - number sequence, 32 | |
512. | Build A Total - number sequence, 23 | |
513. | Number Quest - complete number sentence | |
514. | Build A Total - number sequence, 44 | |
515. | Build A Total - number sequence, 28 | |
516. | Build A Total - number sequence, 36 |