MathsYear 6Algebra

Express equivalence algebraically

Recognise when two simple algebraic expressions are equivalent, e.g. a + b = b + a, and use symbols and letters to represent variables and unknowns

What you'll learn

  1. 1

    Imagine you have a bag of sweets 🍬 and you don't know how many are inside. Let's call that number 'x'.

  2. 2

    If you have x sweets and you eat 2, how many are left?

  3. 3

    Build x + 4 on the balance scales — drag the blocks to show x and then 4 more.

  4. 4

    Let's see how to show '5 more than y' as an expression.

  5. 5

    Which expression means '3 less than a'?

  6. 6

    Now you try — show '4 times n' using the array.

  7. 7

    If p = 10, what is p + 7?

Practise Express equivalence algebraically with Whizlo

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