VCMNA273
Carry out the four operations with rational numbers and integers, using efficient mental and written strategies and appropriate digital technologies and make estimates for these computations
| 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 |