MathsYears 1–2Addition & Subtraction

Add and subtract within 20

Read, write and interpret mathematical statements involving addition (+), subtraction (-) and equals (=) signs; add and subtract one-digit and two-digit numbers to 20

What you'll learn

  1. 1

    Imagine you have 10 toy cars 🚗 and your friend gives you 3 more. How many now?

  2. 2

    If you have 10 cars and get 3 more, how many do you have?

  3. 3

    Tap the apples to add 8 + 5. Count them all!

  4. 4

    Let's do 9 + 4 together. 🐱

  5. 5

    Now try 7 + 6. Use the number line to hop!

  6. 6

    What is 7 + 6?

  7. 7

    You have 15 sweets 🍬 and eat 3. How many left?

Practise Add and subtract within 20 with Whizlo

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

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