MathsYears 1–2Addition & Subtraction

Number bonds to 10 and 20

Represent and use number bonds and related subtraction facts within 20

What you'll learn

  1. 1

    Imagine you have 10 toy cars. 🚗 You put some in one box and the rest in another. The two numbers that join together to make 10 are called number bonds!

  2. 2

    You have 3 cars. How many more to make 10? 🚗🚗🚗

  3. 3

    Tap the two numbers that add up to 10. 🎯

  4. 4

    Let's find the number bond to 10 for 4. 🧮

  5. 5

    What number goes with 6 to make 10? 🧩

  6. 6

    Now try number bonds to 20! Tap two numbers that add up to 20. 🚀

  7. 7

    What number goes with 12 to make 20? 🤔

Practise Number bonds to 10 and 20 with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 5–7. Aligned to the UK National Curriculum.