Starter quiz

  • Complete the statement. Factors and multiples are __________ .
    • always even
    • always odd
    • decimals
    • inverse concepts  ✓
  • Given the calculation 9\times 2 = 18, select the correct statement:
    • 9 and 2 are factors of 18  ✓
    • 9 and 2 are multiples of 18
    • 18 is a square number
    • 18 is a factor of 9 and 2
  • Match the numbers with their factors.
    • Factors of 12 are:
      ⇔
      1, 2, 3, 4, 6 and 12 ✓
    • Factors of 10 are:
      ⇔
      1, 2, 5 and 10 ✓
    • Factors of 24 are:
      ⇔
      1, 2, 3, 4, 6, 8, 12 and 24 ✓
    • Factors of 5 are:
      ⇔
      1 and 5 ✓
  • List all the factors of 10
    • 1, 2, 5 and 10  ✓
    • 10, 20 , 30, 40 and 50
    • 1, 2.5, 2, 5 and 7.5
    • Not possible as there are infinite number of factors of 10
  • List all the multiples of 10
    • 1, 2, 5 and 10
    • 10, 20 , 30, 40 and 50
    • 100, 10, 1, 0.1
    • Not possible as there are infinite number of multiples of 10  ✓
  • Lucas is thinking about 12. He says "12 is a factor of 12 and 12 is a multiple of 12." Is he correct? Pick the correct justification.
    • No, because multiples are always bigger than the factors.
    • Yes, because 12\div 12 = 1 and 12\times 1 = 12  ✓
    • No, because 1 is a multiple of 12
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