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Maths
Use common factors and multiples to solve calculations efficiently

Starter quiz

  • A factor is:
    • always the number after the equals sign.
    • something that multiplies with another number.  ✓
    • the first number in a division equation.
    • the first number in a division equation. can be used in addition.
  • Write down the missing factor from this factor bug.
    Write down the missing factor from this factor bug.
    • '5' ✓
  • Which parts of a division equation can represent factors?
    • Quotient  ✓
    • Divisor  ✓
    • Dividend
    • Product
  • Tick the equations that are true.
    • 25 × 4 = 100  ✓
    • 100 = 25 × 5
    • 100 ÷ 2 = 50  ✓
    • 25 = 100 ÷ 4
    • 10 × 10 = 100  ✓
  • Apply the associative law to complete this calculation. 36 × 2 × 5 = ______
    • '360' ✓
  • Tick the calculation that could be represented as 5 × 2 × 31
    • 31 × 20
    • 52 × 31
    • 81 × 2
    • 231 × 5
    • 62 × 5  ✓
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