1. New Zealand Curriculum
  2. Mathematics and Statistics
  3. Level 4
  4. Numbers and Algebra
  5. Number Strategies and Knowledge

Understand addition and subtraction of fractions, decimals, and integers

Understand addition and subtraction of fractions, decimals, and integers

1. 0.1 less, 0.1 more than 42.6
2. 0.1 less, 0.1 more than 98.1
3. 0.1 less, 0.1 more than 71.9
4. 0.1 less, 0.1 more than 85.3
5. 0.1 less, 0.1 more than 19.9
6. Take Away Tenths
7. Take Away Tenths
8. Take Away Tenths
9. Add A Tenth
10. Add A Tenth
11. 0.1 less, 0.1 more than 40
12. 0.1 less, 0.1 more than 22
13. 0.1 less, 0.1 more than 25.5
14. 0.1 less, 0.1 more than 33.8
15. 10 less, 0.1 more than 80.1
16. Juggling Hundredths: One hundredth less than 100
17. Juggling Hundredths: one hundredth less than 1000
18. Juggling Hundredths: eight hundredths less than 100
19. Juggling Hundredths: seven hundredths less than 78
20. Juggling Hundredths: 23 - 0.15
21. Juggling Hundredths: 13 + 0.96
22. Juggling Hundredths: 26 + 100 hundredths
23. Juggling Hundredths: 54 hundredths more than 45
24. Mystery number: 106+11=?
25. Mystery number: 514+12=?
26. Mystery number: 913+13=?
27. Mystery number: 711+17=?
28. Mystery number: 133+16=?
29. Same or different:44-8,14+23,22+18,19+17,54-18
30. Same or different:43-7,21+17,13+22,18+16,53-17
31. Adding Tens: 235+50 =?
32. Adding Tens: 338+50=?
33. Adding Tens: 562+30=?
34. Number detectives: 348+103=?
35. Number detectives: 156+104=?
36. Same or Different: Answer 58
37. Same or Different: Answer 44
38. 100 zone: *+95=500 365+*=400 625+75=*
39. 100 zone: *+185=200 655+*=700 335+65=*
40. 100 zone: *+25=300 445+*=500 895+5=*
41. 100 zone: *+45=400 165+*=200 725+75=*
42. 100 zone: *+85=700 405+*=500 375+25=*
43. Movin' One Up! 0.7+?=1
44. Scoring decimal points: 19.3+2.3=*1.*
45. Scoring decimal points: *3.6+*.2=25.*
46. Scoring decimal points: 1*.2+2.7=*9.*
47. Scoring decimal points: 1*.*+2.5=*0.8
48. Scoring decimal points: 2*.2+1.5=*7.*
49. Use The pattern 1.4+1.5, 10.4+10.5, 104+105
50. Use The pattern 1.2+1.7, 10.2+10.7, 102 107
51. Use The pattern 1.4+1.4, 10.4+10.4, 104+104
52. Use The pattern 1.2+1.3, 10.2+10.3, 102+103
53. Use The pattern 1.2+1.4, 10.2+10.4, 102+104
54. True or False? Click all the number sentences that are true.
55. True or False? Click all the number sentences that are true.
56. True or False? Click all the number sentences that are true.
57. True or False? Click all the number sentences that are true.
58. True or False? Click all the number sentences that are true.
59. True or False? Click all the number sentences that are true.
60. True or False? Click all the number sentences that are true.
61. True or False? Click all the number sentences that are true.
62. True or False? Click all the number sentences that are true.
63. True or False? Click all the number sentences that are true.
64. Scoring Decimal Points: Complete vertical algorithm
65. Scoring Decimal Points: Complete vertical algorithm
66. Scoring Decimal Points: Complete vertical algorithm
67. Scoring Decimal Points: Complete vertical algorithm
68. Scoring Decimal Points: Complete vertical algorithm
69. Add hundreds: 346 + 400, 1426 + 500, 200 + 7019
70. Adding hundreds: Multiple operations with hundreds numbers
71. Adding hundreds: Multiple operations with hundreds numbers
72. Adding hundreds: Multiple operations with hundreds numbers
73. Adding hundreds: Multiple operations with hundreds numbers
74. Decimals get together: 6.7+?=10
75. Decimals get together: 5.8+4.2=?
76. Decimals get together: ?+3.7=10
77. Number detectives: Add/subtract hundreds numbers
78. Number detectives: Add/subtract hundreds numbers
79. Number detectives: Add/subtract hundreds numbers
80. Number detectives: Add/subtract hundreds numbers
81. Number detectives: Add/subtract hundreds numbers
82. True or False: Double-sided equations
83. True or False: Double-sided equations
84. True or False: Double-sided equations
85. True or False: Double-sided equations
86. True or False: Double-sided equations
87. Use the Pattern: 43 + 39, 43 + 40, 430 + 400
88. Use the Pattern: 56 + 70, + 69, 560 + 700
89. Use the Pattern: 34 + 80, + 79, 340 + 800
90. Use the Pattern: 27 + 90, + 89, 270 + 900
91. Use the Pattern: 62 + 79, 62 + 80, 620 + 800
92. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
93. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
94. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
95. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
96. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
97. Add board: Write missing numbers in vertical addition of 2- and 3-digit numbers
98. Ten up: What must be added to 62.3 to make 70?
99. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
100. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
101. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
102. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
103. Adding decimals: Write missing numbers in vertical addition of 2-digit numbers with 1 dp
104. Use the pattern 6+7 60+70 160+170
105. Use the pattern 12+8 120+80 1200+800
106. Use the pattern 21+9 210+90 2100+900
107. Use the pattern 3+8 30+80 300+800
108. Use the pattern 16+4 160+40 1600+400
109. Number detectives mystery decimals: 0.02+?, 0.26+?, 0.44+?=1
110. Number detectives mystery decimals: 0.33+?, 0.62+?, 0.84+?=1
111. Number detectives mystery decimals: 0.08+?, 0.15+?, 0.73+?=1
112. Number detectives mystery decimals: 0.29+?, 0.82+?, 0.06+?=1
113. Number detectives mystery decimals: 0.45+?, 0.01+?, 0.22+?=1
114. Add these 3 numbers: 80 + 70 + 40
115. Add these 3 numbers: 90 + 60 + 30
116. Add these 3 numbers: 40 + 70 + 20
117. Add these 3 numbers: 30 + 20 + 90
118. Add these 3 numbers: 70 + 90 + 10
119. Number detectives Three's a breeze: 31+29+*=87
120. Number detectives Three's a breeze: 42+12+*=74
121. Number detectives Three's a breeze: 18+22+*=81
122. Number detectives Three's a breeze: 56+21+*=88
123. Number detectives Three's a breeze: 27+23+*=58
124. T/f Double sided eqns
125. T/f Double sided eqns
126. T/f Double sided eqns
127. T/f Double sided eqns
128. T/f Double sided eqns
129. Ten Up 57.81 to 60
130. Ten Up 63.72 to 70
131. Ten Up 46.98 to 50
132. Ten Up 22.56 to 30
133. Ten Up 15.32 to 20
134. Ten Up 133.36 to 140
135. Ten Up 165.83 to 170
136. Ten Up 132.64 to 140
137. Ten Up 113.95 to 120
138. Ten Up 188.66 to 190
139. Scoring Decimal Points: 2*.*+14.9 = *8.5
140. Adding hundreds: 695+*=959, 3492+500=*, 600m/t503=*
141. Adding hundreds: 364+*=1264, 426+600=*, 200m/t 236 =*
142. Adding hundreds 562+*=862, 658+200=*, 500m/t 352=*
143. Adding hundreds: 263+*=663, 222+500=*, 600m/t406=*
144. Adding hundreds 462+*=862, 426+300=* 800m/t169=*
145. Decimal Dropouts : Decimal hundredths totalling 1
146. Decimal Dropouts : Decimal hundredths totalling 1
147. Decimal Dropouts : Decimal hundredths totalling 1
148. Decimal Dropouts : Decimal hundredths totalling 1
149. Decimal Dropouts : Decimal hundredths totalling 1
150. Give or take a thousand Add 4000 to 2668
151. Give or take a thousand Add 8000 to 7558
152. Give or take a thousand what is 5000 m/t 23669?
153. Give or take a thousand what is 6000 m/t 8331?
154. Give or take a thousand what is 19369 + 3000?
155. Add these three numbers 24+45+16=?
156. Add these three numbers 20+35+16=?
157. Add these three numbers 45+15+14=?
158. Add these three numbers 26+12+22=?
159. Add these three numbers 37+13+18=?
160. Scoring Decimal Points: *2.4* + 9.*0 = 4*.09
161. Scoring Decimal Points: *4.34 + 7*.0* = 93.*1
162. Scoring Decimal Points: 7.5* + *.*0 = *2.46
163. Scoring Decimal Points: 4.*6 + 3.1* = *.08
164. Scoring Decimal Points: 8.6* + *.91 = 11.*3
165. Scoring Decimal Points: 7.4* + *.68 = 11.*1
166. Scoring Decimal Points: *.16 + 7.9* = 10.*1
167. Scoring Decimal Points: 4.61 + 6.*3 = **.4*
168. Number detectives: Four's no chore - Add 4 clustered numbers
169. Number detectives: Four's no chore - Add 4 clustered numbers
170. Number detectives: Four's no chore - Add 4 clustered numbers
171. Number detectives: Four's no chore - Add 4 clustered numbers
172. Number detectives: Four's no chore - Add 4 clustered numbers
173. Changing numbers 2.351 add 0.3, 0.003, 0.03
174. Changing numbers 5.391 add 4, 0.004, 0.4
175. Changing numbers 4.345 add 0.004, 40, 0.04
176. Changing numbers 1.221 Add 0.7, 0.07, 7.007
177. Changing numbers 3.539 add 0.001, 1.1, 1.01
178. Same or different: Click all the boxes with the same answer
179. Same or different: Click all the boxes with the same answer
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. Make 150 70+44+*
184. Make 120 52+37+*
185. Make 140 96+14+*
186. Make 130 75+41+*
187. Make 160 57+33+*
188. T/F double sided: 56+14=35+35, etc
189. T/F double sided: 23+12=65+30, etc
190. T/F double sided: 21+80=92-42, etc
191. T/F double sided: 42+46=19+69
192. T/F double sided: 32+18=25+25
193. Give or Take 10 000 40000+227558
194. Give or Take 10 000 50 000+23 565
195. Give or Take 10 000 40 000+56 780
196. Give or Take 10 000 20 000 + 239 330
197. Give or Take 10 000 50 000+50 332
198. Add these three numbers 6.2+1.6+7.2
199. Add these three numbers 4.8+5.2+8.7
200. Add these three numbers 2.5+9.5+2.7
201. Add these three numbers 7.3+1.7+8.1
202. Add these three numbers 3.3+2.5+2.7
203. Number detectives: Add 4 clustered tens numbers
204. Number detectives: Add 4 clustered tens numbers
205. Number detectives: Add 4 clustered tens numbers
206. Number detectives: Add 4 clustered tens numbers
207. Number detectives: Add 4 clustered tens numbers
208. Scoring decimal points: Write the missing numbers in vertical decimal addition
209. Scoring decimal points: Write the missing numbers in vertical decimal addition
210. Scoring decimal points: Write the missing numbers in vertical decimal addition
211. Scoring decimal points: Write the missing numbers in vertical decimal addition
212. Scoring decimal points: Write the missing numbers in vertical decimal addition
213. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
214. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
215. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
216. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
217. Hundredths crossing: Add/subtract crossing a tenths/whole number bound
218. Adding the big ones: Write the missing numbers in vertical addition of large whole numbers
219. Adding the big ones: Write the missing numbers in vertical addition of large whole numbers
220. Adding the big ones: Write the missing numbers in vertical addition of large whole numbers
221. Adding the big ones: Write the missing numbers in vertical addition of large whole numbers
222. Adding the big ones: Write the missing numbers in vertical addition of large whole numbers
223. Make 20 13+-6+*
224. Make 15 3+19+*
225. Make 10 8+7+*
226. Make 20 8+-2+*
227. Make 15 21+-6+*
228. T/F double sided eqn incl -ive #
229. T/F double sided eqn incl -ive #
230. Add these three numbers: 13+-7+3
231. Add these three numbers: 9+2+-3
232. Add these three numbers: 9+8+-5
233. Add these three numbers: 16+-9+2
234. Add these three numbers: 20+-9+11
235. Number detectives: Add 4 clustered hundreds numbers
236. Number detectives: Add 4 clustered hundreds numbers
237. Number detectives: Add 4 clustered hundreds numbers
238. Number detectives: Add 4 clustered hundreds numbers
239. Number detectives: Add 4 clustered hundreds numbers
240. Hundredths crossing 69.39+6.38
241. Hundredths crossing 79.33+5.99
242. Hundredths crossing 37.22+6.37
243. Hundredths crossing 156.54+6.77
244. Hundredths crossing 49.22+0.87
245. Adding the big ones: Write missing numbers in vertical addition
246. Adding the big ones: Write missing numbers in vertical addition
247. Adding the big ones: Write missing numbers in vertical addition
248. Adding the big ones: Write missing numbers in vertical addition
249. Adding the big ones: Write missing numbers in vertical addition
250. In the swim: Addition of times
251. And a Partridge in a pear tree 12+11+10+9, etc
252. Hundredths crossing: Addition of numbers with 2 dec places
253. Hundredths crossing: Addition of numbers with 2 dec places
254. Hundredths crossing: Addition of numbers with 2 dec places
255. Hundredths crossing: Addition of numbers with 2 dec places
256. Hundredths crossing: Addition of numbers with 2 dec places
257. Take tens: 734-50=?
258. Take tens: 408-90=?
259. Take tens: 978-80=?
260. Take tens: 345-70=?
261. Take tens: 533-60=?
262. Subtraction chains: 87-14-13-15, 98-17-11-6
263. Subtraction chains: 79-14-15-12, 68-17-20-11
264. Subtraction chains: 76-13-12-11, 92-20-12-14
265. Subtraction chains: 94-20-14-11, 65-15-25-15
266. 1000s crossing: 6002-6, 4001-4, 2005-7
267. 1000s crossing: 7002-8, 5004-7, 3003-6,
268. 1000s crossing: 9002-9, 18006-7, 7007-9
269. 1000s crossing: 5001-5, 10003-5, 1004-5
270. 1000s crossing: 8004-7, 13003-8, 4006-9
271. Tens Takeaway: 400-20, 40 less than 480, ?-80=360
272. Tens Takeaway: 500-50, 70 less than 700, ?-90=810
273. Tens Takeaway: 900-30, 10 less than 400, ?-60=40
274. Tens Takeaway: 300-80, 50 less than 700, ?-90=110
275. Tens Takeaway: 600-20, 70 less than 500, ?-30=370
276. Subtraction Chains
277. Subtraction Chains
278. Subtraction Chains
279. Subtraction Chains
280. Subtraction Chains
281. Subtraction Chains
282. Subtraction Chains
283. Subtraction Chains
284. Subtraction Chains
285. Hundreds and Thousands: 1643 - 788 = *55
286. Decimal Drops: 27.* - 15.3 = 1*.3
287. Decimal Drops: 63.* - 4*.6 = *2.2
288. Decimal Drops: 54.* - 37.7 = *7.1
289. Decimal Drops: 48.8 - 2*.* = *9.5
290. Decimal Drops: 81.4 - 22.* = *9.2
291. Spot the Difference: Write the difference between 3 number pairs
292. Spot the Difference: Write the difference between 3 number pairs
293. Spot the Difference: Write the difference between 3 number pairs
294. Spot the Difference: Write the difference between 3 number pairs
295. Spot the Difference: Write the difference between 3 number pairs
296. Tenths Crossing: 40.4-0.5, 63.5-0.6, 30.6-0.7
297. Tenths Crossing: 20.2-0.4, 37.7-0.9, 17.5-0.9
298. Tenths Crossing: 26.5-0.8, 55.5-0.9, 74.3-0.7
299. Tenths Crossing: 44.4-0.8, 38.6-0.7, 23.2-0.5
300. Tenths Crossing: 88.5-0.8, 65.3-0.5, 43.6-0.9
301. Scoring Decimal Points: Complete vertical algorithm
302. Scoring Decimal Points: Complete vertical algorithm
303. Scoring Decimal Points: Complete vertical algorithm
304. Scoring Decimal Points: Complete vertical algorithm
305. Scoring Decimal Points: Complete vertical algorithm
306. Mysteries of 20: Decimals
307. Mysteries of 20: Decimals
308. Mysteries of 20: Decimals
309. Mysteries of 20: Decimals
310. Mysteries of 20: Decimals
311. 1000s crossing: 5030-4990, 3010-2950, 7970-8040
312. 1000s crossing: 8020-7940, 4030-3950, 9060-8980
313. 1000s Crossing: 6015-5999, 8014-7995, 3024-2990
314. How Much More? 9>8.6, 6>5.7, 4>3.3?
315. Use the Pattern: Subtract (16-.3)(160-3)(1600-30)
316. Use the Pattern: Subtract (15-0.1)(150-1)(1500-10)
317. Use the Pattern: Subtract (20-0.4)(200-4)(2000-40)
318. Use the Pattern: Subtract (13-.7)(113-7)(1300-70)
319. Use the Pattern: Subtract (17-.5)(170-5)(1700-50)
320. Use the Pattern: Subtract (11-0.6)(110-6)(1100-60)
321. Same or different: Click all boxes with the answer 126
322. Same or different: Click all boxes with the answer 175
323. Same or different: Click all boxes with the answer 426
324. Same or different: Click all boxes with the answer 146
325. Same or different: Click all boxes with the answer 236
326. Same or different: Click all boxes with the answer 567
327. Same or different: Click all boxes with the answer 194
328. Same or different: Click all boxes with the answer 222
329. Same or different: Click all boxes with the answer 468
330. Same or different: Click all boxes with the answer 673
331. Subtraction Chains: 14.8 -2-0.6-0.1, ?-5=20.4,-0.2-5
332. Subtraction Chains: ?-3=15.4, -0.1-8, ?-4-0.5-0.2=9.2
333. Subtraction Chains: ?-4=12.6,-0.5-2, ?-5=15.5,-3-0.2
334. Subtraction Chains: ?-4=14.7,-0.3-4.4, ?-5=11.9,-0.1-0.7
335. Subtraction Chains: ?-4.2=11.5,-1.1-3.3, ?-15.5-3-6.5=6
336. Thousands Takeaway: Write missing numbers in vertical subtraction of thousands numbers
337. Thousands Takeaway: Write missing numbers in vertical subtraction of thousands numbers
338. Thousands Takeaway: Write missing numbers in vertical subtraction of thousands numbers
339. Thousands Takeaway: Write missing numbers in vertical subtraction of thousands numbers
340. Thousands Takeaway: Write missing numbers in vertical subtraction of thousands numbers
341. Take Hundreds:4421-?=3921,9365-500=?,5350-500=?
342. Take Hundreds:48801-?=4840, 66150-300=?, 45685-700=?
343. Take Hundreds:46250-?=45850, 69358-500= ?, 7419-600=?
344. Take Hundreds:47210-?=46510,53296-800=?, 45258-400=?
345. Take Hundreds: 42159-?=41859, 22014-500=?, 71119-600=?
346. 50s Get Together: 1000 - ? = 750
347. 50s Get Together: 1000 - 850 =*
348. 50s Get Together: 4250 - 650 =*
349. 50s Get Together: * + 550 = 1000
350. 50s Get Together: 550 + ? = 1000
351. Give or Take a thousand
352. Give or Take a thousand
353. Give or Take a thousand
354. Give or Take a thousand
355. Give or Take a thousand
356. Financially Frank: Money addition and subtraction
357. Road work: Distance to go on one tank of fuel
358. Fill Up The Tank: 1000-255=?
359. Thousands crossing: 12009-12, 16005-9, 25006-15,
360. Thousands crossing: 24001-6, 27004-10, 23002-22987
361. Thousands crossing: 22002-10, 19006-8, 41009-15
362. Thousands crossing: 42002-41992, 26013-25287, 37007-15
363. Uncle Bob's new car: New price less trade-in
364. Wheeling Deal: New price less trade-in
365. Mitchell moves up: New price less trade-in
366. Dr Dan drives on: New price less trade-in
367. Lord Percibald rides in style: New price less trade-in
368. Running the race: Addition and subtraction of distances
369. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
370. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
371. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
372. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
373. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
374. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
375. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
376. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
377. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
378. Scoring Decimal Points: Write missing numbers in vertical addition of decimal numbers
379. Same or different: Click all boxes with the same answer
380. Same or different: Click all boxes with the same answer
381. Same or different: Click all boxes with the same answer
382. Same or different: Click all boxes with the same answer
383. Same or different: Click all boxes with the same answer
384. Thousands Takeaway: *42* - 4480 = 4**5
385. Thousands Takeaway: 673* - **41 = 39*9
386. Thousands Takeaway: *34* - 2375 = 5**8
387. Thousands Takeaway: 70** - *104 = 1*99
388. Thousands Takeaway: *04* - 27*9 = 1*21
389. 50s get together: 4000 - ? = 750
390. 50s get together: 6000 - ? = 650
391. 50s get together: 2000 - ? = 150
392. 50s get together: 1000 - 650 = ?
393. 50s get together: 1000 - 450 = ?
394. 50s get together: 8000 - 450 = ?
395. 50s get together: ? - 150 = 1850
396. 50s get together: ? - 350 = 6650
397. 50s get together: ? - 850 = 4150
398. 50s get together: ? - 5350 = 650
399. Number Detectives: Subtracting decimals
400. Number Detectives: Subtracting decimals
401. Number Detectives: Subtracting decimals
402. Number Detectives: Subtracting decimals
403. Number Detectives: Subtracting decimals
404. Number Detectives: Subtracting decimals
405. Number Detectives: Subtracting decimals
406. Number Detectives: Subtracting decimals
407. Number Detectives: Subtracting decimals
408. Number Detectives: Subtracting decimals
409. Give or Take a Thousand 193051 - 3000 = ?
410. Give or Take a Thousand 714320 - 5000 = ?
411. Give or Take a Thousand 685531 - 2000 = ?
412. Give or Take a Thousand 214990 - 5000 = ?
413. Give or Take a Thousand 33750 - 3000 = ?
414. Give or Take a Thousand 142301 - 6000 = ?
415. Give or Take a Thousand 335771 - 8000 = ?
416. Give or Take a Thousand 1524151 - 20000 = ?
417. Give or Take a Thousand 1348159 - 10000 = ?
418. Give or Take a Thousand 31486128 - 30000 = ?
419. Give or Take a Thousand 13221 - 8000 = ?
420. Give or Take a Thousand 12850 - 4000 = ?
421. Give or Take a Thousand 31280 - 3000 = ?
422. Give or Take a Thousand 25190 - 6000 = ?
423. Give or Take a Thousand 14820 - 7000 = ?
424. When the Red Red Robin...: Subtraction of measurements in mm
425. Cheetin' Horses: Comparison of speeds in km/hr
426. Golden Oldies: Age difference
427. Fete accomplished: Money addition and subtraction
428. Spot the difference: Write the difference between 612 and 588
429. Spot the difference: Write the difference between 315 and 291
430. Spot the difference: Write the difference between 708 and 687
431. Spot the difference: Write the difference between 475 and 395
432. Spot the difference: Write the difference between 117 and 95
433. Crossing the line: Subtracting distances
434. True or False: 631-82=549
435. True or False: 297=342-45
436. True or False: 746-53=693
437. Same or Different - Click all the boxes where the answer is 84
438. Same or Different - Click all the boxes where the answer is 387
439. Same or Different - Click all the boxes where the answer is 792
440. Same or Different - Click all the boxes where the answer is 576
441. Same or Different - Click all the boxes where the answer is 264
442. Decimal mysteries 50 -*=11.08,-*=36.15,-*=16.46
443. Decimal mysteries 50 -*=26.33,-*=37.85,-*=1.07
444. Decimal mysteries 50 -*=8.28,-*=22.16,-*=32.77
445. Decimal mysteries 50 -*=21.44,-*=30.53,-*=13.19
446. Decimal mysteries 50 -*=32.65,-*=13.21,-*=24.17
447. Give or Take a Hundred 562719-500
448. Give or Take a Hundred 276582-400
449. Give or Take a Hundred 618395-200
450. Give or Take a Hundred 45927-300
451. Give or Take a Hundred 75881-700
452. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
453. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
454. Taking the Big Ones: Write the missing numbers in vertical subtractions
455. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
456. Taking the Big Ones: Write the missing numbers in vertical subtractions
457. Driven to the edge: 1000-793
458. Growing pains - 1000-126
459. Pump up the volume - 3000-934
460. Taking stock - 1000-750
461. Spot the difference 493.8&412.6
462. Spot the difference 248.7&218.3
463. Spot the difference 759.5&734.1
464. Spot the difference 695.6&623.2
465. Spot the difference 176.9&141.5
466. Thousands crossing: Add/subtract crossing a thousands bound
467. Thousands crossing: Add/subtract crossing a thousands bound
468. Thousands crossing: Add/subtract crossing a thousands bound
469. Thousands crossing: Add/subtract crossing a thousands bound
470. Thousands crossing: Add/subtract crossing a thousands bound
471. Decimal Drops: Write the missing numbers in vertical decimal subtractions
472. Decimal Drops: Write the missing numbers in vertical decimal subtractions
473. Decimal Drops: Write the missing numbers in vertical decimal subtractions
474. Decimal Drops: Write the missing numbers in vertical decimal subtractions
475. Decimal Drops: Write the missing numbers in vertical decimal subtractions
476. True or false 60 - 120 = -60
477. True or false 120 - 250 = -130
478. Same or different: Click all the boxes with the same answer
479. Same or different: Click all the boxes with the same answer
480. Same or different: Click all the boxes with the same answer
481. Same or different: Click all the boxes with the same answer
482. Give or take a thousand: 257908 - 160000
483. Give or take a thousand: 135001 - 34000
484. Give or take a thousand: 106095 - 29000
485. Give or take a thousand: 236401 - 195401
486. Give or take a thousand: 182356 - 127356
487. Give or take a thousand: 262141 - 245141
488. Give or take a thousand: 120068 - 88068
489. Give or take a thousand: 86215 - 7000
490. Give or take a thousand: 13553 - 8000
491. Give or take a thousand: 842908 - 74000
492. Scoring decimal points: Write missing numbers in vertical decimal subtractions
493. Scoring decimal points: Write missing numbers in vertical decimal subtractions
494. Scoring decimal points: Write missing numbers in vertical decimal subtractions
495. Scoring decimal points: Write missing numbers in vertical decimal subtractions
496. Scoring decimal points: Write missing numbers in vertical decimal subtractions
497. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
498. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
499. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
500. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
501. Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms
502. Spot the difference: 4550 - 2150
503. Spot the difference: 6600 - 3650
504. Spot the difference: 5750 - 2550
505. Spot the difference: 9350 - 5450
506. Spot the difference: 2600 - 8700
507. Spot the difference: 8400 - 3500
508. Spot the difference: 3150 - 1500
509. True/false: 128-64=145-81
510. True/false: 154-72=172-90
511. True/false: 136-61=125-50
512. True/false: Decimal subtraction 2 dp
513. True/false: Decimal subtraction 2 dp
514. Scoring decimal points: Write missing numbers in vertical subtractions
515. Scoring decimal points: Write missing numbers in vertical subtractions
516. Spot the Difference: Decimal subtraction calculation 2dp
517. Spot the Difference: Decimal subtraction calculation 2dp
518. Ruby at the sweet shop: 2x$1 + 8x10c
519. Mali at the sweet shop: 3x20c + 10x10c
520. The spice of life: Multiplication of weights
521. Fractions Add
522. Fractions Add
523. Fractions Add
524. Fractions Add
525. Fractions Add
526. Only a portion: Fraction addition 1/4+7/12=*
527. Pass the pieces, please!: Fraction addition *+1/2=7/12
528. Fraction output: Fraction addition *+2/3=3/4
529. Fractional output: Fraction addition 1/4+1/5=*
530. Fractions mounting: Fractions addition 1/3+1/2=*
531. Fractured addition: Addition of fractions
532. Fractions Add: 3/5+3/4
533. Fractions Add: 1/2+1/8
534. Fractions Add: 1/2+1/5
535. Fractions Add: 1/4+?=9/20
536. Mega-sum-a-saurus - complete missing digits to make number sentence
537. Mega-sum-a-saurus - complete missing digits to make number sentence
538. Mega-sum-a-saurus - complete missing digits to make number sentence
539. Enid the Elephant's Equations - equivalent to 9 + 5
540. Enid the Elephant's Equations - equivalent to 8 + 7
541. Mega-sum-a-saurus - complete missing digits to make number sentence
542. Mega-sum-a-saurus - complete missing digits to make number sentence
543. What An Eye-Full! 2 - calculate length and convert from m to cm
544. Sugar High? - adding g to kg, 2 decimal places
545. Sugar High? - adding g to kg, 3 decimal places
546. Sugar High? - adding g to kg, 2 decimal places
547. Karl's Cargo Chaos - calculate number of cartons that can be carried based on given masses
548. Karl's Cargo Chaos - calculate number of cartons that can be carried based on given masses
549. Phil Carries the Cans - caluclate number of trips given masses
550. Karl's Cargo Chaos - calculate number of cartons that can be carried based on given masses
551. Phil Carries the Cans - caluclate number of trips given masses
552. Up And Up: 1.6+0.7
553. Up And Up: 1.7+1.1
554. Up And Up: 1.9+0.3
555. Up And Up: 1.5+0.4
556. Up And Up: 1.7+0.4
557. Up And Up: 11.2+4.5
558. Up and Up: 13.4+6.3
559. Movin' One Up! 0.1+?=1
560. Movin' One Up! 0.5+?=1
561. Movin' One Up! 0.2+?=1
562. Movin' One Up! 0.4+?=1
563. How Much Less? 1.2<2, 15.5<16, 3.8,4?
564. How Much Less? 11.6<12, 13.7<14, 7.5<10?
565. How Much More? 7>6.5, 1>0.2, 10>4.8
566. How Much More? 20>19.4, 12>11.8, 10>6.5?
567. Up and Up: 74.9+22.6
568. Up and Up: 52.4+14.8
569. Up and Up: 33.6+45.5
570. Up and Up: 64.7+13.5
571. Movin' On Up! 13.7+?=16
572. Decimal Descent: 72.6-31.3
573. Decimal Descent: 46.7-11.3
574. Decimal Descent: 54.3-22.1
575. Up and Up: 15.2+3.9
576. Up and Up: 11.8+6.5
577. Up and Up: 13.6+4.7
578. Up and Up: 14.4+2.8
579. Up and Up: 10.9+5.3
580. Decimal Descent: 21.7-6.8
581. Decimal Descent: 34.2-6.5
582. Decimal Descent: 11.3-8.7
583. Decimal Descent: 40.6-8.7
584. Decimal Descent: 64.5-5.8
585. Up and Up: 76.04+9.09
586. Up and Up: 24.92+3.26
587. Up and Up: 65.39+6.21
588. Up and Up: 28.21+0.81
589. Up and Up: 13.45+7.05
590. Decimal Descent: 45.99-1.71
591. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
592. Decimal Descent: 7.63-1.51
593. Decimal Descent: 25.54-5.1
594. Decimal Descent: 63.83-3.93
595. Decimal Descent: 17.62-16.51
596. Decimal Descent: 37.97-2.97
597. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
598. Decimal Descent: 25.73-2.8
599. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
600. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
601. Decimal Descent: 153-151.5
602. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
603. Decimal Descent: Difference between 2 decimal numbers (same no.dec. plces)
604. Movin' On Up! 13.9+?=16
605. Movin' On Up! 12.5+?=15
606. Movin' On Up! 11.2+?=14
607. Movin' On Up! 15.8+?=18
608. Up and Up: 11.8+1.9
609. Up and Up: 13.2+2.9
610. Up and Up: 10.8+6.8
611. Up and Up: 12.7+4.4
612. Up and Up: 13.3+5.8
613. Decimals get together: 7.6+?=10
614. Decimals get together: 2.7+7.3=?
615. Decimals get together: ?+1.1=10
616. Decimals get together: 5.4+?=10
617. Decimals get together: 4.7+5.3=?
618. Decimals get together: ?+5.7=10
619. Decimals get together: 3.8+?=10
620. Decimals get together: 3.4+6.6=?
621. Decimals get together: ?+7.1=10
622. Decimals get together: 5.9+?=10
623. Decimals get together: 3.7+6.3=?
624. Decimals get together: ?+6.7=10
625. Up and Up: 130.45+60.56
626. Up and Up: 3.8+2.6=?
627. Up and Up: 21.4+4.5=?
628. Up and Up: 13.4+6.3=?
629. Up and Up: 14.4+7.3=?
630. Up and Up: 17.4+6.2=?
631. Up and Up: 16.3+7.5=?
632. Up and Up: 13.4+5.4=?
633. Ten up: What must be added to 34.4 to make 40?
634. Ten up: What must be added to 18.3 to make 20?
635. Ten up: What must be added to 46.5 to make 50?
636. Ten up: What must be added to 26.8 to make 30?
637. Tenths Tournament: 0.5 less than 7.5
638. Tenths Tournament: 1- 0.6
639. Tenths Tournament: Take 0.5 from 0.9
640. Tenths Tournament: 6.9 minus 0.4
641. Tenths Tournament: 1- 0.5
642. Tenths Tournament: 8.3 plus 0.2
643. Tenths Tournament: 1- 0.1
644. Tenths Tournament: 0.6 more than 5.3
645. Tenths Tournament: Add 0.4 to 4.3
646. Tenths Tournament: 1- 0.7
647. Tenths Tournament: 6.1 + 0.8
648. Tenths Tournament: 0.1 less than 9.4
649. Tenths Tournament: Take 0.4 from 1.8
650. Tenths Tournament: 1- 0.8
651. Tenths Tournament: 1- 0.2
652. Crossing the line: Subtracting distances
Privacy Policy | Terms and Conditions | Copyright | Press | Contact Us
© Erinzan Pty Ltd. All rights reserved.