Calculating
| 1. | A Matter of Factors: Common factors of 80 and 32 | |
| 2. | A Matter of Factors: Common factors of 88 and 66 | |
| 3. | A Matter of Factors: Common factors of 35 and 70 | |
| 4. | Prime Time: Prime numbers | |
| 5. | Number Detectives: a+b=17, ab=-60 | |
| 6. | Number Detectives: a+b=55, ab=484 | |
| 7. | Number Detectives: a+b=133, ab=1000 | |
| 8. | Number Detectives: 2 prime numbers-sum =1 more than 8 squared | |
| 9. | Number Detectives: prime cubed + prime = 127 | |
| 10. | Find the Power: Write numbers using powers of 10 | |
| 11. | Find the Power: Write numbers using powers of 10 | |
| 12. | Find the Power: Write numbers using powers of 10 | |
| 13. | Find the Power: Write numbers using powers of 10 | |
| 14. | Find the Power: Write numbers using powers of 10 | |
| 15. | Going Up: Ordering indexed numbers | |
| 16. | Going Down: Ordering indexed numbers | |
| 17. | Going Up: Ordering indexed numbers | |
| 18. | Going Down: Ordering indexed numbers | |
| 19. | Going Up: Ordering indexed numbers | |
| 20. | Binary Form: Write 1010101 in Base Ten form | |
| 21. | Binary Form: Write 1100110 in Base Ten form | |
| 22. | Binary Form: Write 0111001 in Base Ten form | |
| 23. | Binary Form: Write 0100011 in Base Ten form | |
| 24. | Binary Form: Write 0111100 in Base Ten form | |
| 25. | Binary Form: Write 112 in binary form | |
| 26. | Binary Form: Write 99 in binary form | |
| 27. | Binary Form: Write 19 in binary form | |
| 28. | Binary Form: Write 113 in binary form. | |
| 29. | Binary Form: Write 50 in binary form | |
| 30. | Binary Form: Write 0000111 in Base Ten form | |
| 31. | Detective Duck: Add 4 clustered numbers | |
| 32. | Detective Duck: Add 4 clustered numbers | |
| 33. | Detective Duck: Add 4 clustered numbers | |
| 34. | Detective Duck: Add 4 clustered numbers | |
| 35. | Detective Duck: Add 4 clustered numbers | |
| 36. | Changing numbers 56 293 x 0.1, + 8 459, div. by 0.01 | |
| 37. | Changing numbers 8025 x 20, + 16 986, div. by 0.5 | |
| 38. | Make 29: 282 + -184 + * | |
| 39. | Make 180: 369 + -75 + * | |
| 40. | Make 126: 34+81 + * | |
| 41. | Make 79: 104 + -53 + * | |
| 42. | Make 115: -26 + 180 + * | |
| 43. | Double up and add 3.76 | |
| 44. | Add 3 numbers: 106 + 24 + -6 | |
| 45. | Add 3 numbers: -72 + 203 + -16 | |
| 46. | Add 3 numbers: -58 + -245 + 10 | |
| 47. | Add 3 numbers: -158 + 101 + 69 | |
| 48. | Add 3 numbers: -36 + -72 + 17 | |
| 49. | In the cube C/R216 + C/R64 + 3cubed | |
| 50. | In the cube C/R* + C/R512 + 5cubed = 143 | |
| 51. | In the cube C/R343 + C/R* + 4cubed = 73 | |
| 52. | In the cube C/R1 + C/R* + 8cubed = 522 | |
| 53. | In the cube C/R27 + C/R125 + *cubed = 224 | |
| 54. | Four's no chore: Add 4 clustered numbers | |
| 55. | Four's no chore: Add 4 clustered numbers | |
| 56. | Four's no chore: Add 4 clustered numbers | |
| 57. | Four's no chore: Add 4 clustered numbers | |
| 58. | Four's no chore: Add 4 clustered numbers | |
| 59. | Hundredths crossing: Addition of numbers with 2 dp | |
| 60. | Hundredths crossing: Addition of numbers with 2 dp | |
| 61. | Hundredths crossing: Addition of numbers with 2 dp | |
| 62. | Adding the big ones: Write missing numbers in vertical addition | |
| 63. | Adding the big ones: Write missing numbers in vertical addition | |
| 64. | Adding the big ones: Write missing numbers in vertical addition | |
| 65. | Adding the big ones: Write missing numbers in vertical addition | |
| 66. | Adding the big ones: Write missing numbers in vertical addition | |
| 67. | Find the Mystery Number 176- * =-190 | |
| 68. | Find the Mystery Number 384- * =407 | |
| 69. | Find the Mystery Number -769- * =-732 | |
| 70. | Find the Mystery Number 245- * =263 | |
| 71. | Put a number on the yellow box -41.5+23.7+ * =-14.4 | |
| 72. | Put a number on the yellow box -26.7+-15.9+ * =-17.5 | |
| 73. | Put a number on the yellow box -17.6+-11.9+ * =26.2 | |
| 74. | Put a number on the yellow box -10.5+-18.9+ * =12.8 | |
| 75. | Scoring Decimal Points: Write missing numbers in vertical subtraction | |
| 76. | Scoring Decimal Points: Write missing numbers in vertical subtraction | |
| 77. | Scoring Decimal Points: Write missing numbers in vertical subtraction | |
| 78. | Subtraction Chains: Subtractions with 2 dp | |
| 79. | Subtraction Chains: Subtractions with 2 dp | |
| 80. | Find the Power 4.18x10(5)-7x10(3)= * x10(5) | |
| 81. | Find the Power 5.63x10(4)-2x10(2)= * x10(4) | |
| 82. | Find the Power 9.24x10(7)-6x10(5)= * x10(6) | |
| 83. | Find the Power 6.47x10(6)-5x10(4)= * x10(6) | |
| 84. | Number detectives sum of 4x3 and 3x11 | |
| 85. | Number detectives *x-9=-45 | |
| 86. | Multipication Simplification: Simplify multiplication by doubling and halving | |
| 87. | First things first!: BODMAS calculations | |
| 88. | Decimal times: Write missing numbers in vertical decimal multiplication | |
| 89. | Detective Duck finds the mystery suspect: Understand multiplication terminology | |
| 90. | Detective Duck finds the mystery suspect: Understand multiplication terminology | |
| 91. | Detective Duck finds the mystery suspect: Understand multiplication terminology | |
| 92. | Detective Duck finds the mystery suspect: Understand multiplication terminology | |
| 93. | Detective Duck finds the mystery suspect: Understand multiplication terminology | |
| 94. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 95. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 96. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 97. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 98. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 99. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |
| 100. | Square it: Square 1.5,-0.15 | |
| 101. | Square it: Square 1.6,-16 | |
| 102. | Square it: Square 0.21,-0.21 | |
| 103. | Square it: Square 18,1.8 | |
| 104. | Square it: Square 0.22,2.2 | |
| 105. | Multi-Multiplication 27 (x7,0.5,60,104) | |
| 106. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |
| 107. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |
| 108. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |
| 109. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |
| 110. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |
| 111. | First things first!: BODMAS calculations | |
| 112. | First things first!: BODMAS calculations | |
| 113. | First things first!: BODMAS calculations | |
| 114. | First things first!: BODMAS calculations | |
| 115. | First things first!: BODMAS calculations | |
| 116. | First things first!: BODMAS calculations | |
| 117. | First things first!: BODMAS calculations | |
| 118. | First things first!: BODMAS calculations | |
| 119. | Decimal Times: Write missing numbers in vertical multiplication | |
| 120. | Decimal Times: Write missing numbers in vertical multiplication | |
| 121. | Decimal Times: Write missing numbers in vertical multiplication | |
| 122. | Decimal Times: Write missing numbers in vertical multiplication | |
| 123. | Number detectives : 32÷40 | |
| 124. | Divide hundreds! 360/*=900, 420/0.3=* | |
| 125. | Division chains: Write missing numbers in division chains | |
| 126. | First things first!: BODMAS calculations | |
| 127. | The Great Divide: Perform multiple division operations | |
| 128. | The Great Divide: Perform multiple division operations | |
| 129. | Detective Duck finds the mystery suspect: Understand division terminology | |
| 130. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 131. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 132. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 133. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 134. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 135. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 136. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 137. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 138. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |
| 139. | Divide a hundred 216/*=2400, 312/0.06=* | |
| 140. | Divide a hundred 136/*=-340, 512/-0.8=* | |
| 141. | Divide a Thousand 3660/-0.04=* | |
| 142. | Divide a Thousand 5058/-0.06=* | |
| 143. | Divide Ten Thousand 42600/300=* | |
| 144. | Divide Ten Thousand 39 200/700=* | |
| 145. | Division Chains: Write missing numbers in division chains | |
| 146. | Division Chains: Write missing numbers in division chains | |
| 147. | Division Chains: Write missing numbers in division chains | |
| 148. | Maths Production 800,8,56 | |
| 149. | Number Production 1.6,320,8 | |
| 150. | First things first!: BODMAS calculations | |
| 151. | First things first!: BODMAS calculations | |
| 152. | First things first!: BODMAS calculations | |
| 153. | Find the roots *=-0.6, *=6 | |
| 154. | Find the roots *=9, *=-0.09 | |
| 155. | Find the roots *=-0.4, *=-40 | |
| 156. | The Great Divide: Multiple divisions | |
| 157. | Find the roots * = -0.6, * = -0.06 | |
| 158. | Find the roots * = -0.3, * = -0.03 | |
| 159. | Find the roots *= -0.04, * = 0.4 | |
| 160. | Truth about fractions: Select the larger number 82/40 or 2.5 | |
| 161. | Truth about fractions: Click the smaller fraction 7/8 or 90% | |
| 162. | More or less fractions: Click the expression which is lesser in value | |
| 163. | Fearlessly fathoming fractions: Write 96% as a fraction in its lowest terms | |
| 164. | The truth about fractions: Select the larger fraction | |
| 165. | The truth about fractions: Select the smaller fraction | |
| 166. | More or less: Select the larger number 34% of 75or 5/7 of 85 | |
| 167. | More or less: Select the larger number 82% of 40 or 5/4 of 25 | |
| 168. | More or less: Select the larger fraction 5 out of 16 or 8/25 | |
| 169. | Detective Duck | |
| 170. | Ancient Scale: Investigate proportional relationships | |
| 171. | Down on Don's Farm - Develop then calculate an algebraic expression | |
| 172. | Down on Don's Farm - Develop then calculate an algebraic expression | |
| 173. | Captain Jones's Challenge - Develop then calculate an algebraic expression | |
| 174. | Captain Jones's Challenge - Develop then calculate an algebraic expression | |
| 175. | Captain Jones's Challenge - Develop then calculate an algebraic expression | |
| 176. | In The Blink Of An Eye 2 - metric time; metric hours, beats and blinks | |
| 177. | In The Blink Of An Eye 1 - metric time; metric hours, beats and blinks | |
| 178. | A Bright Spark - standard deviation | |
| 179. | A First For Fiona 3 - interpret average, standard deviation | |
| 180. | A First For Fiona 2 - interpret average, standard deviation | |
| 181. | A First For Fiona 1 - interpret average, standard deviation | |
| 182. | Detective Duck: Calculate numbers from percentages | |
| 183. | Head Quarters: One half & one quarter of 62940 | |
| 184. | Head Quarters: One half & one quarter of 49380 | |
| 185. | Up and Up: 466.5+577.6=? | |
| 186. | Fraction Quest: Click the larger number 33/10 or 3.2 |