MathematicsMultiplication & DivisionAges 8–9
Factor Pairs & Commutativity
Recognise and use factor pairs and commutativity in mental calculations
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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?
Recognise and use factor pairs and commutativity in mental calculations
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This concept
Factor Pairs & CommutativityConceptual concept
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