MathsYears 5–6Addition & Subtraction

Mental addition and subtraction strategies

Add and subtract numbers mentally with increasingly large numbers; use rounding to check answers and determine levels of accuracy

What you'll learn

  1. 1

    Imagine you have 58p in your pocket and you find 20p on the floor. 🪙

  2. 2

    What is 58 + 20 using the 'add tens first' trick? 🧠

  3. 3

    Use the number line to jump 30 from 47. 🐸

  4. 4

    Let's do 84 - 30 in our heads. 🧮

  5. 5

    Now try 63 - 20 on the number line. 🐸

  6. 6

    What is 63 - 20? 🤔

  7. 7

    Which mental strategy helps you add 30 to any number? 🧠

Practise Mental addition and subtraction strategies with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 9–11. Aligned to the UK National Curriculum.

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