ACMNA183
Carry out the four operations with rational numbers and integers, using efficient mental and written strategies and appropriate digital technologies
1. | Number Detectives: a+b=12 ab=36 | |
2. | Number Detectives: a+b=25 HIghest value of product? | |
3. | Number Detectives: a+b=15 Highest value of product? | |
4. | Number Detectives: a+b=13 Highest value of product? | |
5. | Number Detectives: a+b=19 Highest value of product? | |
6. | Number Detectives: Sum of 4 consecutive odd nos = 40 | |
7. | Number Detectives: Sum of 4 consecutive odd nos = 32 | |
8. | Number Detectives: Sum of 4 consecutive even nos = 100 | |
9. | Number Detectives: Sum of 4 consecutive odd nos = 120 | |
10. | Number Detectives: Sum of 4 consecutive even nos = 60 | |
11. | Number Detectives: ab = 150 b-a = 5 | |
12. | Number Detectives: ab= 126 a+b= 25 | |
13. | Number Detectives: LCM of 25 & 30 | |
14. | Number Detectives: Sum of 4 consecutive odd nos = 80 | |
15. | Number Detectives: a[6] = 729 | |
16. | Changing numbers: Addition/subtraction using negative integers | |
17. | Changing numbers: Addition/subtraction using negative integers | |
18. | Changing numbers: Addition/subtraction using negative integers | |
19. | Changing numbers: Addition/subtraction using negative integers | |
20. | Make 20 13+-6+* | |
21. | Make 15 3+19+* | |
22. | Make 10 8+7+* | |
23. | Make 20 8+-2+* | |
24. | Make 15 21+-6+* | |
25. | T/F double sided eqn incl -ive # | |
26. | T/F double sided eqn incl -ive # | |
27. | T/F double sided eqn incl -ive # | |
28. | T/F double sided eqn incl -ive # | |
29. | T/F double sided eqn incl -ive # | |
30. | Add these three numbers: 13+-7+3 | |
31. | Add these three numbers: 9+2+-3 | |
32. | Add these three numbers: 9+8+-5 | |
33. | Add these three numbers: 16+-9+2 | |
34. | Add these three numbers: 20+-9+11 | |
35. | Number detectives: Add 4 clustered hundreds numbers | |
36. | Number detectives: Add 4 clustered hundreds numbers | |
37. | Number detectives: Add 4 clustered hundreds numbers | |
38. | Number detectives: Add 4 clustered hundreds numbers | |
39. | Number detectives: Add 4 clustered hundreds numbers | |
40. | Adding the big ones: Write missing numbers in vertical addition | |
41. | Adding the big ones: Write missing numbers in vertical addition | |
42. | Adding the big ones: Write missing numbers in vertical addition | |
43. | And a Partridge in a pear tree 12+11+10+9, etc | |
44. | Make 13 18+34+* | |
45. | Make -5 27+9+* | |
46. | Make 29 37+20+* | |
47. | Make -8 42+16+* | |
48. | Make 32 29+12+* | |
49. | Add these three numbers 84+-11+-16 | |
50. | Add these three numbers -19+55+-26 | |
51. | Add these three numbers -17+-28+34 | |
52. | Add these three numbers -41+-35+47 | |
53. | Add these three numbers 46+13+14 | |
54. | Adding the big ones: Write missing numbers in vertical additions | |
55. | Adding the big ones: Write missing numbers in vertical additions | |
56. | Adding the big ones: Write missing numbers in vertical additions | |
57. | Adding the big ones: Write missing numbers in vertical additions | |
58. | Adding the big ones: Write missing numbers in vertical additions | |
59. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
60. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
61. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
62. | True or false 60 - 120 = -60 | |
63. | True or false 420 - (-85) =515 | |
64. | True or false 120 - 250 = -130 | |
65. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
66. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
67. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
68. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
69. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
70. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
71. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
72. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
73. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
74. | N/D Find the mystery negative: Addition/subtraction of negative integers up to +/-100 | |
75. | Same or different: Click all the boxes with the same answer | |
76. | Same or different: Click all the boxes with the same answer | |
77. | Same or different: Click all the boxes with the same answer | |
78. | Same or different: Click all the boxes with the same answer | |
79. | Same or different: Click all the boxes with the same answer | |
80. | Give or take a thousand: 257908 - 160000 | |
81. | Give or take a thousand: 135001 - 34000 | |
82. | Give or take a thousand: 106095 - 29000 | |
83. | Give or take a thousand: 236401 - 195401 | |
84. | Give or take a thousand: 182356 - 127356 | |
85. | Give or take a thousand: 262141 - 245141 | |
86. | Give or take a thousand: 120068 - 88068 | |
87. | Give or take a thousand: 86215 - 7000 | |
88. | Give or take a thousand: 13553 - 8000 | |
89. | Give or take a thousand: 842908 - 74000 | |
90. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
91. | Taking the Big Ones: Write the missing numbers in vertical subtraction algorithms | |
92. | Spot the difference: 4550 - 2150 | |
93. | Spot the difference: 6600 - 3650 | |
94. | Spot the difference: 5750 - 2550 | |
95. | Spot the difference: 9350 - 5450 | |
96. | Spot the difference: 2600 - 8700 | |
97. | Spot the difference: 8400 - 3500 | |
98. | Spot the difference: 3150 - 1500 | |
99. | Negatively speaking: -2 +(-4) - * = 10 | |
100. | Negatively speaking: - 4 + 5 - * = 10 | |
101. | Negatively speaking: -8 +7 - * = 10 | |
102. | Negatively speaking: -6 - 1 - * = 10 | |
103. | Negatively speaking: -16 +25 - * = 10 | |
104. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
105. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
106. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
107. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
108. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
109. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
110. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
111. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
112. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
113. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
114. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
115. | N/D Find the mystery negative!: Subtraction with single-digit negative integers | |
116. | Subtracting big ones: Write missing numbers in vertical subtractions | |
117. | Subtracting big ones: Write missing numbers in vertical subtractions | |
118. | Subtracting big ones: Write missing numbers in vertical subtractions | |
119. | Subtracting big ones: Write missing numbers in vertical subtractions | |
120. | Subtracting big ones: Write missing numbers in vertical subtractions | |
121. | Cory cooks for Christmas: Calculate quantities in grams and kilograms | |
122. | Cycling with Chris: Add/subtract in metres and kilometres | |
123. | Plumbing the depths: Calculate in metres and kilometres | |
124. | Lord Percibald improves: Money calculations | |
125. | Write the missing number: 20= -10, 17, ? | |
126. | Write the missing number: 20=-45, 30, ? | |
127. | Write the missing number: 20= -15, 25, ? | |
128. | Write the missing number: 20= -18, -24, ? | |
129. | Write the missing number: 20= -8, -2, ? | |
130. | Looks to dye for: Money multiplication | |
131. | Karting dollars: Money multiplication | |
132. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |
133. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |
134. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |
135. | Number detectives *x-4=-24 | |
136. | Number detectives *x-4=-28 | |
137. | Number detectives *x3=-27 | |
138. | Number detectives *x5=30 | |
139. | Number detectives -6x-2=* | |
140. | Number detectives 3x-7=* | |
141. | Number detectives 5x-6=* | |
142. | Number detectives -3x-3=* | |
143. | Number detectives 6x*=-18 | |
144. | Number detectives -3x*=12 | |
145. | Number detectives -6x*=24 | |
146. | Number detectives -2x*=-16 | |
147. | Water watch: Volume multiplication and subtraction | |
148. | Food for thought: Money multiplication and division | |
149. | Pizza Pays: Money multiplication | |
150. | Multi-Multiplication-7 x3 x-3 x-2 x-5 | |
151. | Multi-Multiplication 6 x-5 x9 x-7 x-4 | |
152. | First things first 3x5+2x(3+3)=* | |
153. | First things first 4x5+3x(2+3)=* | |
154. | First things first 9x5+30/(2+8)=* | |
155. | First things first 6x4-22/(13-11)=* | |
156. | First things first 40/8+2(4+5)=* | |
157. | First things first -6x5+3(6+4)=* | |
158. | First things first 2x10+3x(4-5)=* | |
159. | First things first 6x-2+27/(5+4)=* | |
160. | First things first 2x-5+2x(21-11)=* | |
161. | First things first 8x5+36/-6=* | |
162. | Number detectives sum of 7x11 and 2x15 | |
163. | Number detectives sum of 5x25 and 3x5 | |
164. | Number detectives sum of 6x8 and 20x10 | |
165. | Number detectives sum of 25x4 and 8x9 | |
166. | Number detectives *x7=-42 | |
167. | Number detectives 35x90 | |
168. | Number detectives 820x10x*=1640 | |
169. | Health times: Multiplication of liquid measurements | |
170. | Bus Times: Multiply distances | |
171. | On a roll: Multiplication of measurements | |
172. | Times to tile: Division of lengths | |
173. | Sum it up: Put the correct number statement on the question board | |
174. | Multipication Simplification: Simplify multiplication by doubling and halving | |
175. | Multipication Simplification: Simplify multiplication by doubling and halving | |
176. | Multipication Simplification: Simplify multiplication by doubling and halving | |
177. | Multipication Simplification: Simplify multiplication by doubling and halving | |
178. | First things first!: BODMAS calculations | |
179. | First things first!: BODMAS calculations | |
180. | First things first!: BODMAS calculations | |
181. | First things first!: BODMAS calculations | |
182. | First things first!: BODMAS calculations | |
183. | First things first!: BODMAS calculations | |
184. | First things first!: BODMAS calculations | |
185. | Number detectives : 48/80 | |
186. | Number detectives : 15/50 | |
187. | Number detectives : 24/?=80 | |
188. | Number detectives : 16/?=80 | |
189. | Number detectives : 35/?=70 | |
190. | Divided Maths: Complete these number sentences | |
191. | Divided Maths: Complete these number sentences | |
192. | My Fair Sharer: Write the correct division setting | |
193. | True or false: -36 / -6 = -6 | |
194. | True or false: -72 / -9 = 8 | |
195. | True or false: 7 = -84 / -12 | |
196. | True or false: -96 / 12 = -24 / 3 | |
197. | True or false: 26.5 / 2 = 13.25 | |
198. | True or false: -6.5 / 2 = -3.25 | |
199. | Weekend Work: Money multiplication | |
200. | Ahoy there, me hearties!: Money division | |
201. | Examining the Remains | |
202. | Examining the Remains | |
203. | Examining the Remains | |
204. | About to divide: Click the best estimate | |
205. | About to divide: Click the best estimate | |
206. | About to divide: Click the best estimate | |
207. | True or False: -21/-7=3 | |
208. | True or False: -156/-12=13 | |
209. | True or False: -96/12=-8 | |
210. | True or False: -72/8=9 | |
211. | True or False: -45/-5=-9 | |
212. | Sum it up: Identify the correct calculation | |
213. | Sum it up: Identify the correct calculation | |
214. | Surf's up: Money division | |
215. | My Fair Sharer /-7 | |
216. | My Fair Sharer /-4 | |
217. | Divide and Rule: Simplify division by halving both numbers | |
218. | Divide and Rule: Simplify division by halving both numbers | |
219. | Divide and Rule: Simplify division by halving both numbers | |
220. | Divide and Rule: Simplify division by halving both numbers | |
221. | Divide and Rule: Simplify division by halving both numbers | |
222. | True/false: -108 / 9 = 12 | |
223. | True/false: -555 / 5 = -111 | |
224. | Sum it up: Prue's party | |
225. | Sum it up: Car rally | |
226. | Up or Down: Round to give a sensible answer to a division problem | |
227. | Fractions Multiply: 3/4x2/9 | |
228. | Fractions Divide: 1/2 / 3/4 | |
229. | Fractions Divide: 10 / 1/6 | |
230. | Dr Chris's Specialist Operations - Functions: Identify second operation | |
231. | Dr Chris's Specialist Operations - Functions: Identify second operation | |
232. | Dr Chris's Specialist Operations - Functions: Identify number set after 2 ops | |
233. | Dr Chris's Specialist Operations - Functions: Identify number set after 2 ops | |
234. | Dr Chris's Specialist Operations - Functions:Identify and order 2 operations | |
235. | Dr Chris's Specialist Operations - Functions:Identify and order 2 operations | |
236. | Dr Chris's Specialist Operations - Functions:Identify and order 2 operations | |
237. | Dr Chris's Specialist Operations: Functions: Select number set before operating | |
238. | Dr Chris's Specialist Operations: Functions: Select number set before operating | |
239. | Dr Chris's Specialist Operations: Functions: Select multiple operations | |
240. | Dr Chris's Specialist Operations: Functions: Select multiple operations | |
241. | Dr Dan's Number Operations - Operate on both sides of an equation | |
242. | Dr Dan's Number Operations - Operate on both sides of an equation | |
243. | Dr Dan's Number Operations - Operate on both sides of an equation | |
244. | What Eddie Read - number problem | |
245. | Mathematical Magic - square puzzle, same sum in all directions | |
246. | Mathematical Magic - square puzzle, same sum in all directions | |
247. | One by Juan... - continue pattern | |
248. | Sum It Up - Eggs-actly! - number sentence expressing mass | |
249. | Lunar Ticks 1 - lunar months and years | |
250. | Goal Posts Bus Service Timetable 2 - calculate total time spent over 12 months | |
251. | It's A Dog's Life 4 - sevenths of a year, "dog years" vs "human years" | |
252. | Go Take A Leap 2 - days in 303 years (no leap years) | |
253. | Go Take A Leap 1 - days in 400 years | |
254. | Lunar Ticks 3 - lunar months and years | |
255. | Porktown Pig Out - number of 250mL cups in 400L | |
256. | Top It Up - number of 1.5L bottles to make 100L | |
257. | The Sanders Family Pool! - time taken to fill pool from 40000L to 43000L | |
258. | Moon-Light? - combined mass, kg, scientific notation | |
259. | Head Quarters: One half & one quarter of 27160 | |
260. | Head Quarters: One half & one quarter of 34160 | |
261. | Head Quarters: One half & one quarter of 38480 | |
262. | Head Quarters: One half & one quarter of 31720 |