MathsYears 4–5Multiplication & Division

Factor pairs

Recognise and use factor pairs and commutativity in mental calculations

What you'll learn

  1. 1

    Imagine 12 biscuits on a plate. You want to share them into equal rows. How many ways can you arrange them? 🍪

  2. 2

    If you put 12 biscuits into rows of 2, how many biscuits are in each row? 🍪

  3. 3

    Arrange 12 biscuits into equal rows. Try rows of 3 — how many rows do you get? 🍪

  4. 4

    Let's find all the factor pairs of 12 together. 🔍

  5. 5

    Which number pairs with 4 to make 12? 🧩

  6. 6

    Now find the factor pairs of 20. Arrange 20 biscuits into equal rows to help you. 🍪

  7. 7

    Which is a factor pair of 20? ✅

Practise Factor pairs with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 8–10. Aligned to the UK National Curriculum.