# Multiply and divide integers using mental and written strategies

1. | Number Detectives: a[6] = 729 | |

2. | Hitting The Big Times: Fill in the missing numbers in a vertical multiplication sum | |

3. | Hitting The Big Times: Fill in the missing numbers in a vertical multiplication sum | |

4. | Maths production: Put the correct ending on each multiplication sentence | |

5. | Maths production: Put the correct ending on each multiplication sentence | |

6. | Maths production: Put the correct ending on each multiplication sentence | |

7. | Double Up: 140 | |

8. | Double Up: 240 | |

9. | Double Up: 160 | |

10. | Double Up: 180 | |

11. | Double Up: 130 | |

12. | Accounting for cars: Money multiplication | |

13. | Drive the dollars: Money multiplication | |

14. | Hitting the big times: *3 *55 x * = 6* 465 | |

15. | Hitting the big times: 44626 x 6 = *6**5* | |

16. | Hitting the big times: **457 x 4 = 93 **8 | |

17. | Hitting the big times: 82 *4* x 20 = 1 **6 94* | |

18. | Hitting the big times: 51* *37 x 3 = * *48 71* | |

19. | Times Machine: Outputs (x12) | |

20. | Times Machine: Inputs (x6) | |

21. | Times Machine: Write the answer after the numbers have been multiplied | |

22. | Deck the halls: 60 pine cones x 30 Christmas trees | |

23. | Scientifically speaking: 32 children with 7 milk cartons each | |

24. | Granny squares 25 x 15 | |

25. | Water the Vines: 16 rows of vines x 110 metres | |

26. | Legal Eagles Coffee Shop: $7500x12 = $? | |

27. | Maths production: Complete each number sentence | |

28. | Maths production: Complete each number sentence | |

29. | Maths production: Complete each number sentence | |

30. | Maths production: Complete each number sentence | |

31. | Same or different: Click all the boxes with the same answer | |

32. | Same or different: Click all the boxes with the same answer | |

33. | Same or different: Click all the boxes with the same answer | |

34. | Same or different: Click all the boxes with the same answer | |

35. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

36. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

37. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

38. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

39. | Maths Production: Complete each number sentence | |

40. | Maths Production: Complete each number sentence | |

41. | Number Production: Complete each number sentence | |

42. | Number Production: Complete each number sentence | |

43. | Number Production: Complete each number sentence | |

44. | Times Machine: Write the correct multiplier on the times machine | |

45. | Times Machine: Write the correct multiplier on the times machine | |

46. | Times Machine: Write the correct multiplier on the times machine | |

47. | Times Machine: Write the correct multiplier on the times machine | |

48. | Times Machine: Write the correct multiplier on the times machine | |

49. | Times Machine x -50 | |

50. | Times Machine x -12 | |

51. | Times Machine x -6 | |

52. | Times Machine x -80 | |

53. | Times Machine x -30 | |

54. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |

55. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |

56. | Hitting the Big Times: Write missing numbers in vertical large number multiplicatiions | |

57. | Number detectives *x-4=-24 | |

58. | Number detectives *x-4=-28 | |

59. | Number detectives *x3=-27 | |

60. | Number detectives *x5=30 | |

61. | Number detectives -6x-2=* | |

62. | Number detectives 3x-7=* | |

63. | Number detectives 5x-6=* | |

64. | Number detectives -3x-3=* | |

65. | Number detectives 6x*=-18 | |

66. | Number detectives -3x*=12 | |

67. | Number detectives -6x*=24 | |

68. | Number detectives -2x*=-16 | |

69. | Multi-Multiplication-7 x3 x-3 x-2 x-5 | |

70. | Multi-Multiplication 6 x-5 x9 x-7 x-4 | |

71. | Number detectives *x7=-42 | |

72. | Number detectives *x-9=-45 | |

73. | Number detectives 35x90 | |

74. | Number detectives 820x10x*=1640 | |

75. | Multipication Simplification: Simplify multiplication by doubling and halving | |

76. | Multipication Simplification: Simplify multiplication by doubling and halving | |

77. | Multipication Simplification: Simplify multiplication by doubling and halving | |

78. | Multipication Simplification: Simplify multiplication by doubling and halving | |

79. | Multipication Simplification: Simplify multiplication by doubling and halving | |

80. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |

81. | Find the Mystery Number: Solve multiplication sentences with a symbol for an unknown number | |

82. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

83. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

84. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

85. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

86. | Multiplication Simplification: Use doubling and halving to simplify multiplication | |

87. | Division Chain: Three- and four-digit numbers | |

88. | Division Chain: Three- and four-digit numbers | |

89. | Number detectives : 48/80 | |

90. | Number detectives : 15/50 | |

91. | Number detectives : 32÷40 | |

92. | Divide a thousand: 28 000/70 | |

93. | Divide a thousand: 48 000/600 | |

94. | Divide a thousand 16 488/4 | |

95. | Divide a thousand 21 360/30 | |

96. | Pie maths: Dollar division | |

97. | Game Buddies: $270/3 | |

98. | Busy bodies: Dollar division | |

99. | Divide hundreds: Division of 3-digit hundreds multiples | |

100. | Divide a hundred 90 and 80 | |

101. | Divide ten thousand 30 000 / 50 = ? | |

102. | Divide a hundred thousand 280 000 / 40 = ? | |

103. | Divide a hundred thousand 640 000 / 8000 = ? | |

104. | Degrees of heat: How many times hotter is the Earth's inner core than the upper mantle? | |

105. | Rolling rivers: Compare the length of the Nile with the length of the Murrumbidgee | |

106. | Go green: Average number of trees planted per week | |

107. | Pay up!: Calculate fortnightly pay from annual salary | |

108. | Plant division: Average monthly turnover | |

109. | My Fair Sharer: Outputs (/ -9) | |

110. | My Fair Sharer: Write the correct division setting | |

111. | Divide and rule: Use halving to simplify division | |

112. | Divide and rule: Use halving to simplify division | |

113. | Divide and rule: Use halving to simplify division | |

114. | True or false: -36 / -6 = -6 | |

115. | True or false: -72 / -9 = 8 | |

116. | True or false: 7 = -84 / -12 | |

117. | True or false: -96 / 12 = -24 / 3 | |

118. | Ahoy there, me hearties!: Money division | |

119. | Cockroach count: Money division | |

120. | My fair sharer: / -9 | |

121. | My fair sharer: / -12 | |

122. | Divide and rule: Simply division calculations by halving | |

123. | Divide and rule: Simply division calculations by halving | |

124. | Divide and rule: Simply division calculations by halving | |

125. | Divide and rule: Simply division calculations by halving | |

126. | Divide and rule: Simply division calculations by halving | |

127. | True or False: -21/-7=3 | |

128. | True or False: -156/-12=13 | |

129. | True or False: -96/12=-8 | |

130. | True or False: -72/8=9 | |

131. | True or False: -45/-5=-9 | |

132. | Slam Dunk: Measurement mtuliplication | |

133. | Surf's up: Money division | |

134. | My Fair Sharer /-7 | |

135. | My Fair Sharer /-4 | |

136. | Divide and Rule: Simplify division by halving both numbers | |

137. | Divide and Rule: Simplify division by halving both numbers | |

138. | Divide and Rule: Simplify division by halving both numbers | |

139. | Divide and Rule: Simplify division by halving both numbers | |

140. | Divide and Rule: Simplify division by halving both numbers | |

141. | Around the World in 8 days: Calculate price of fuel | |

142. | Detective Duck finds the mystery suspect: Understand division terminology | |

143. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |

144. | Find the Mystery Number: Solve division sentences with a symbol for an unknown number | |

145. | Divide Ten Thousand 42600/300=* | |

146. | Divide Ten Thousand 39 200/700=* | |

147. | My Fair Sharer: Write correct division setting | |

148. | Circular Logic: How many arc-seconds in a circle? | |

149. | Enid the Elephant's Equations - 15/3 | |

150. | Four Force - complete number sentences | |

151. | Happy Birthday 4 - hours in 11 years and 6 months | |

152. | Aged to Perfection 4 - year 131 500 hours after 1991 | |

153. | Leap Years - select leap years from list | |

154. | It's A Dog's Life 3 - sevenths of a year, "dog years" vs "human years" | |

155. | Wait a Moment 1 - medieval time units, points and moments | |

156. | The Traditions of Time 1 - quadrennium, quinquennium and octennium | |

157. | It's A Dog's Life 2 - sevenths of a year, "dog years" vs "human years" | |

158. | It's A Dog's Life 1 - sevenths of a year, "dog years" vs "human years" | |

159. | It's A Dog's Life 4 - sevenths of a year, "dog years" vs "human years" | |

160. | Lunar Ticks 4 - Callipic cycles, Metatonic cycles and years | |

161. | The Way Things Used To Be 1 - Hebrew time units, heleks | |

162. | Wait a Moment 3 - medieval time units, ounces and moments | |

163. | Wait a Moment 2 - medieval time units, ounces and moments | |

164. | The Traditions of Time 3 - quadrennium, quinquennium and octennium | |

165. | The Way Things Used To Be 2 - Hebrew time units, heleks | |

166. | Wait a Moment 4 - medieval time units, ounces and moments | |

167. | The Great Paschal Period - solar and lunar cycles | |

168. | The Traditions of Time 2 - quadrennium, quinquennium and octennium | |

169. | Wal's Water Worries - 2.5L bottles in 80L barrel | |

170. | Wal's Water Worries - 1.25L bottles in 10L barrel | |

171. | Talking Maths - time to fill bath, 2 measures of L/min | |

172. | Melted Maths - (tablespoons) 20mL to make 140mL |