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Maths
Use common factors and multiples to solve calculations efficiently

Starter quiz

  • Two numbers that multiply each other to form a product are known as:
    • multiples
    • factors  ✓
    • products
  • Tick the number(s) that represent the factors in this equation 21 = 7 × 3
    • 21
    • 7  ✓
    • 3  ✓
  • Match the factor pairs for the product of 20
    • 1
      ⇔
      20 ✓
    • 2
      ⇔
      10 ✓
    • 4
      ⇔
      5 ✓
  • Write down the incorrect factor of 30 from this factor bug.
    Write down the incorrect factor of 30 from this factor bug.
    • '7' ✓
  • Tick the prime factors of 12, using the factor circle to help you.
    Tick the prime factors of 12, using the factor circle to help you.
    • 1
    • 2  ✓
    • 3  ✓
    • 4
    • 12
  • Which image of a factor circle represents the number 24 as prime factors?
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