1. AusVELS
  2. Mathematics
  3. Level 3
  4. Number and Algebra
  5. Number and place value

ACMNA054

Recognise and explain the connection between addition and subtraction

1. 1000 less, 1000 more than 4215
2. 1000 less, 1 more than 7999
3. 10 less, 10 more than 5990
4. 100 less, 100 more than 4900
5. 1000 less, 1000 more than 3690
6. Changing Numbers - 2458 to 2558
7. Changing Numbers - 9906 to 9996
8. Changing Numbers - 7899 to 7909
9. Changing Numbers - 4323 to 4423
10. Changing Numbers - 8999 to 9000
11. 1000 less, 100 more than 4035
12. 1000 less, 100 more than 1000
13. 1000 less, 1000 more than 1900
14. 100 less, 1000 more than 1795
15. 1000 less, 10 more than 8712
16. 1000 less, 100 more than 6995
17. 100 less, 1 more than 5999
18. 1000 less, 1 more than 8799
19. 100 less, 1000 more than 5000
20. 1 less, 1000 more than 8000
21. Add Board: *0 + 20 = 100
22. Make 50: 20+10+?
23. Make 50: 20+10+?
24. Make 50: 20+10+?
25. Make 50: 20+10+?
26. Make 50: 20+10+?
27. Adding tens: 26 + ? = 36
28. Adding tens: 46 + ? = 56
29. Adding tens: 64 + ? = 94
30. Adding tens: ?+ 36 = 66
31. Adding tens: ?+ 73 = 83
32. Adding tens: ?+ 46 = 86
33. Make 50: 20+10+?
34. Adding tens: 120 + ? = 140; 120 + 50 = ?
35. Adding tens: 24 + ? = 64, 24 + 50 = ?
36. Adding tens: 145 + ? = 155, 145 + 30 = ?
37. Adding tens: 57 + ? = 97, 57 + 20 = ?
38. Adding tens: 138 + ? = 178, 178 + 20 = ?
39. Number detectives: 80+?, 90+?, 40+?=100
40. Number detectives: 10+?, 70+?, 50+?=100
41. Number detectives: 25+?, 35+?, 55+? =100
42. Number detectives: 5+?, 45+?, 15+?=100
43. 100 Zone: 93 + 10, 94 + 10, 96 + 10
44. 100 Zone: 90 + 10, 92 + 10, 97 + 10
45. 100 Zone: 95 + 10,10 + 95, 105 - 10
46. 100 Zone: 98 + 10,10 + 98, 108 - 10
47. 100 Zone: 99 + 10,109 - 10, 10 + 99
48. 100 Zone: 70 + 40 = ? 90 + ? = 110, ? + 80 = 110
49. 100 Zone: 60 + 80 = ? 90 + ? = 140, ? + 100 = 140
50. 100 Zone: 70 + 80 = ? 100 + ? = 150, ? + 70 = 150
51. 100 Zone: 90 + 70 = ? 80 + ? = 160, ? + 60 = 160
52. 100 Zone: 95+7=? 101-?=99 ?+6=103
53. 100 Zone: 95+6=? 103-?=99 ?+6=104
54. 100 Zone: 98+7=? 105-?=98 ?+6=105
55. 100 Zone: 98+6=? 102-?=98 ?+5=103
56. 100 Zone: 98+3=? 101-?=97 ?+5=102
57. Changing Numbers 29 to 34
58. Changing Numbers 67 to 78
59. Changing Numbers 98 to 101
60. Changing Numbers 87 to 92
61. Changing Numbers 59 to 63
62. Changing Numbers 96 to 101
63. Number detectives 45+*=100
64. Number detectives 75+*=100
65. Number detectives 85+*=100
66. Number detectives 35+*=100
67. Number detectives 5+*=100
68. Number detectives *+109 = 113
69. Number detectives *+4 = 103
70. Number detectives *+5 = 103
71. Number detectives 485+*= 493
72. Number detectives 515+*= 523
73. Number detectives 95+*=101
74. Number detectives 97+*=103
75. Make 200: 130+50+*
76. Make 200: 70+100+*
77. Make 200: 60+40+*
78. Make 200: 90+30+*
79. Make 200: 150+40+*
80. Addition Chains 21 + 3 + 6 + 5, 60 + 4 + 3 + 2
81. Addition Chains 33 + 4 + 10 + 5, 28 + 3 + 9 + 8
82. Addition Chains 23 + 5 + 4 + 9, 60 + 8 + 3 + 10
83. Addition Chains 95 + 4 + 2 + 12, 94 + 3 + 3 + 7
84. Addition Chains 100 + 5 + 5 + 7, 99 + 3 + 6 + 2
85. Number Detectives: 100 Pairs ? + 79 = 100
86. Number Detectives: 100 Pairs ? + 51 = 100
87. Number Detectives: 100 Pairs 88 + ? = 100
88. On the Board 45 + 3* = *7
89. On the Board 3* + *5 = 98
90. On the Board 4* + 42 = *9
91. On the Board 3* + 62 = *6
92. On the Board 8* + *6 = 98
93. On the Board 33 + *5 = 7*
94. On the Board *8 + 51 = 7*
95. Adding Tens 167 + * = 197
96. Add Hundreds: 600+ * = 946
97. Add Hundreds: 200+ * = 580
98. Add Hundreds: 400+ * = 963
99. Add Hundreds: 100+ * = 319
100. Add Hundreds: 300+ * = 565
101. Add Hundreds: 500+246
102. Add Hundreds: 300+453
103. Add Hundreds: 800+163
104. Adding Tens: * + 726 = 786
105. Adding Tens: * + 314 = 394
106. Add Hundreds: * + 300 = 330
107. Add Hundreds: * + 200 = 241
108. Add Hundreds: * + 800 = 819
109. Add Hundreds: * + 300 = 345
110. Add Hundreds: * + 200 = 295
111. Number Detectives: 100 Pairs 85 + ?, 75 + ?, 45 +?= 100
112. Make 100: 50, 20 & ?
113. Make 100: 60, 20 & ?
114. Make 100: 10, 40 & ?
115. Make 100: 10, 30 & ?
116. Make 100: 60, 40 & ?
117. Number detectives: 60+?, 50+?, 75+?=100
118. True or False? 10-7=20-7
119. True or False? 15-2=2-15
120. True or False? 10-2=11-3
121. True or False? 9-5=8-4
122. Anyone for a burger: $20 - ($4 + $6)
123. Anyone for a burger: $20 - ($4 + $5)
124. Anyone for a burger: $20 - ($5 + $6)
125. Anyone for a burger: $20 - ($4 + $3)
126. Anyone for a burger: $20 - ($6 + $5)
127. Anyone for a burger?: $10 - ($4 + $3)
128. Anyone for a burger?: $15 - ($6 + $5)
129. Anyone for a burger?: $20 - ($4 + $6)
130. Bargain Basement: $20 - ($4+ $2+ $10)
131. Bargain Basement: $15 - ($8 + $6)
132. Bargain Basement: $20 - ($8 + $10)
133. Anyone for a burger? $20 -($6 + $4 + $3)
134. Take it away: Subtraction with decomposition 63-9
135. Take it away: Subtraction with decomposition 45-8
136. Take it away: Subtraction with decomposition 51-5
137. Take it away: Subtraction with decomposition 43-7
138. Take it away: Subtraction with decomposition 34-8
139. Take it away: Subtraction with decomposition 62-8
140. Take it away: Subtraction with decomposition 41-6
141. Take it away: Subtraction with decomposition 63-9
142. Take it away: Subtraction with decomposition 45-7
143. Take it away: Subtraction with decomposition 56-9
144. Take it away: Subtraction with decomposition 45-9
145. True or False?: 12 - 2 = 15 - 5
146. True or False?: 28 - 8 = 30 - 10
147. True or False?: 25 - 5 = 25 - 5
148. True or False?: 15 - 5 = 30 - 20
149. True or False?: 30 - 5 = 28 - 3
150. Takeaway board: 3? - 14 = 23
151. Takeaway board: 2? - 13 = 13
152. Takeaway board: 4? - 22 = 27
153. Takeaway board: 6? - 12 = 55
154. Takeaway board: 5? - 26 = 32
155. Subtract.chains 32 - 4 - 7 - 4, 45 - 2 - 10 - 5
156. Anyone for a burger? $20 - ($4 + $5)
157. Take it away: Subtraction with decomposition 24 - 18
158. Take it away: Subtraction with decomposition 52 - 36
159. Take it away: Subtraction with decomposition 43 - 26
160. Take it away: Subtraction with decomposition 46 - 28
161. Take it away: Subtraction with decomposition 71 - 52
162. Spot the difference: 102 & 97, 27 & 19, 100 & 60
163. Write the missing number: 7 + ? + 14 = 30
164. Write the missing number: 15 + 4 + ? = 30
165. Write the missing number: 12 + 10 + ? = 30
166. Write the missing number: 15 + 5 + ? = 30
167. Write the missing number: 18 + 8 + ? = 30
168. Write the missing number: 5 + 5 + ? = 30
169. Number Detectives: ? - 15 = 10
170. Number Detectives: ? - 9 = 21
171. Number Detectives: 30 - 17 = ?
172. Number Detectives: 30 - 14 = ?
173. Number Detectives: 30 - ? = 12
174. Number Detectives: 40 - ? = 29
175. Takeaway board 152-? = 144
176. Takeaway board 547-? = 538
177. Takeaway board 553-? = 546
178. Takeaway board 291-? 285
179. Takeaway board 742-? = 737
180. Takeaway Board ?9-18 = 71
181. Takeaway Board 67-1?=53
182. Takeaway Board 79-?8=61
183. Takeaway Board ?7-17=50
184. Takeaway Board ?3-21=72
185. Anyone for a burger?: $20 - ($6 + $6 + $1 + $3)
186. Anyone for a burger?: $20 - ($4 + $4 + $1 + $3)
187. Find first number: After I count back 5, the new number is 299. Where did I start?
188. Find first number: After I count back 4, the new number is 197. Where did I start?
189. Find first number: After I count back 6, the new number is 395. Where did I start?
190. Find first number: After I count back 7, the new number is 596. Where did I start?
191. Find first number: After I count back 8, the new number is 95. Where did I start?
192. Changing Numbers 84 to 63
193. Changing Numbers 100 to 44
194. Changing Numbers 40 to 24
195. Changing Numbers 124 to 98
196. Write the missing number: 25 + 3 + ? = 35
197. Write the missing number: 25 + 4 + ? = 35
198. Write the missing number: 25 + 2 + ? = 35
199. Write the missing number: 25 + 5 + ? = 35
200. Write the missing number: 25 + 1 + ? = 35
201. Write the missing number: 35 + 5 + ? = 50
202. Write the missing number: 35 + 7 + ? = 50
203. Write the missing number: 35 + 9 + ? = 50
204. Write the missing number: 35 + 13 + ? = 50
205. Write the missing number: 35 + 11 + ? = 50
206. Hundreds takeaway 350-**=330
207. Hundreds takeaway 697-**=614
208. Hundreds takeaway 457-**=425
209. Hundreds takeaway 596-**=543
210. Hundreds takeaway 875-**=865
211. Hundreds takeaway 997-**=971
212. Subtracting tens: 88 - ? = 48
213. Subtracting tens: 57 - ? = 27
214. Subtracting tens: 44 - ? = 24
215. Subtracting tens: 86 - ? = 56
216. Subtracting tens: 94 - ? = 24
217. The Mysteries of 40!: 40-?=31, 40-?=33, 40-?=30
218. The Mysteries of 40!: 40-?=51, 40-?=38, 40-?=32
219. The Mysteries of 40!: 40-?=32, 40-?=29, 40-?=37
220. The Mysteries of 40!: 40-?=29, 40-?=38, 40-?=39
221. The Mysteries of 40!: 40-?=30, 40-?=33, 40-?=36
222. The Mysteries of 40!: 40-?=29, 40-?=31, 40-?=33
223. The Mysteries of 40!: 40-?=28, 40-?=32, 40-?=18
224. The Mysteries of 30!: 30-?=26, 30-?=23, 30-?=27
225. The Mysteries of 30!: 30-?=23, 30-?=13, 30-?=3
226. The Mysteries of 30!: 30-?=18, 30-?=15, 30-?=12
227. The Mysteries of 30!: 30-?=14, 30-?=19, 30-?=9
228. Subtraction chains: 30-4-10-8, 30-5-10-7
229. Subtraction chains: 30-4-16-8, 30-5-3-11
230. Subtraction chains: 30-8-6-12, 30-6-3-5
231. Subtraction chains: 30-3-4-13, 30-6-5-7
232. Subtraction chains: 30-10-9-4, 30-5-9-7
233. Loraine's day out: $50 < or > ($22 + $18)?
234. Jamie's day out: $20 < or > ($12 + $12)?
235. Wendy's day out: $50 < or > ($34 + $14)?
236. Spot the Difference: Between 169 and 176
237. Spot the Difference: Between 239 and 242
238. Spot the Difference: Between 465 and 472
239. Spot the Difference: Between 327 and 333
240. Spot the Difference: Between 689 and 694
241. Take it away: Subtraction with decomposition 53 - 28
242. Take it away: Subtraction with decomposition 61 - 13
243. Take it away: Subtraction with decomposition 25 - 16
244. Take it away: Subtraction with decomposition 33 - 18
245. Take it away: Subtraction with decomposition 46 - 27
246. Spot the difference: 160 and 174; 346 and 360; 190 and 204
247. The Mysteries of 40! 40-14,23,19
248. The Mysteries of 40! 40-8,12,25
249. The Mysteries of 40! 40-20,15,9
250. What Was I Thinking? - find original number after operations
251. What Was I Thinking? - find original number after operations
252. What Was I Thinking? - find original number after operations
253. Sum In A Circle - numbers in each group total 15
254. Dr Dan's Number Operations - "x - 6 = 7"
255. The Busy Bus - students on and off bus
256. Dr Dan's Number Operations - "x + 2 = 10"
257. Number Quest - complete number sentence
258. Number Quest - complete number sentence
259. Build A Total - number sequence, 24
260. Number Quest - complete number sentence
261. Build A Total - number sequence, 30
262. 10 less, 100 more than 4508
263. 100 less, 10 more than 6577
264. 100 less, 1000 more than 2231
265. 1000 less, 100 more than 4550
266. 100 less, 100 more than 7323
267. 1000 less, 1000 more than 1001
268. 1000 less, 1000 more than 4035
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