Understanding integer multiplication

Lessons

• Introduction
  Introduction to integer multiplication

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• 1.
  Write the multiplication statement for each diagram.
  a)

  
  
  
  
  
  b)

  
  
  
  
  
  c)

  
  
  
  
  

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• 2.
  Solve.
  a)

  (+2)×(+5)
  
  
  b)

  (-4)×(+6)
  
  
  c)

  (+7)×(+3)
  
  
  d)

  (-2)×(-9)
  
  

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• 3.
  Dave can do 15 sit-ups in one minute. How many sit-ups can he do in 8 minutes?

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• 4.
  A building has 8 stories above ground and 4 stories below ground. Each story has a height of 5m.
  a)

  What is the total height of the building above ground?
  
  
  b)

  What is the total depth of the building below ground?
  
  

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• 5.
  Mary spends $30 per week on meals for a year. Sally spends $125 per month on meals for a year. Who spends more money on meal, and by what amount?

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