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MathematicsMultiplication & DivisionAges 8–9

Factor Pairs & Commutativity

Recognise and use factor pairs and commutativity in mental calculations

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List factor pairs systematically and separate reordering from regrouping.

List factor pairs systematically and separate reordering from regrouping.

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Check understanding

  • List all factor pairs of a given number (e.g. 24: 1×24, 2×12, 3×8, 4×6)
  • Use commutativity to reorder a multiplication for easier mental calculation
  • Explain what a factor pair is and how commutativity helps
“If your child needs to multiply '4 × 15', can they spot that splitting it into '4 × 5 × 3 = 20 × 3 = 60' is a clever shortcut — using factor pairs to make it easier?”

Curriculum record

Type
Conceptual
Subject
Mathematics
Domain
Multiplication & Division
Age range
Ages 8–9

Standards

uk-nc-2013:Ma/KS2/Y4/MD/3