Starter quiz

  • What are the first five multiples of 11?
    • 11, 22, 33, 44, 55  ✓
    • 1, 11
    • 1, 2, 5.5, 11
    • 22, 33, 44, 55, 66
  • Match an example of a common multiple of the numbers given.
    • Common multiple of 2 and 3
      ⇔
      are multiples of 6 ✓
    • Common multiple of 2 and 5
      ⇔
      are multiples of 10 ✓
    • Common multiple of 3 and 5
      ⇔
      are multiples of 15 ✓
    • Common multiple of 7 and 11
      ⇔
      are multiples of 77 ✓
  • Identify the common multiples of 2 and 7.
    • 1, 2, 7
    • 2, 4, 6, 7, 8, 10, 14, ….
    • 14, 28, 42, 56, ….  ✓
    • There are no common multiples of 2 and 7
  • Identify the common multiples of 3, 4, and 5
    • 1, 2, 4, 5, 10
    • 60, 120, 180, ….  ✓
    • 2, 4, 5, 8, 10, 12, ….
    • There are no common multiples of 3, 4 and 5
  • A light flashes every 4 minutes. Another light flashes every 5 minutes. At 9 am, they flash at the same time. What time will they next flash together?
    • 9:14 am
    • 9:09 am
    • 9:15 am
    • 9:20 am  ✓
  • Starting with the largest, put these fractions in order of size. Use a common denominator to help you.
    • 1
      ⇔
      {5} \over {6} 
    • 2
      ⇔
      {2} \over {3} 
    • 3
      ⇔
      {1} \over {2} 
    • 4
      ⇔
      {7} \over {15} 
    • 5
      ⇔
      {1} \over {10} 
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