Year 9 Algebra Worksheets | Printable PDFs

Year 9 Algebra worksheets for Year 9 Maths (Key Stage 3). Students aged 13–14 learn key algebra skills including expanding brackets, factorising expressions, simplifying algebra and working with indices.
Students also practise substitution, solving equations and inequalities, rearranging formulae and generating sequences including geometric sequences. For easier algebra worksheets go to: Year 8 Algebra Worksheets. For solving quadratic equations and more advance algebraic manipulation try Year 10 Algebra Worksheets.

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For more Algebra Worksheets, see Year 10 Algebra Worksheets


Common Questions about Year 9 Algebra

  1. What does it mean to expand a bracket?

    Expanding a bracket means multiplying every term inside the bracket by the term outside the bracket.
  2. Why is the grid method useful for expanding brackets?

    The grid method helps organise the multiplication and reduces the chance of missing a term.
  3. How do you expand 3(x + 4)?

    Multiply 3 by x and 3 by 4 to get 3x + 12.

Year 9 Algebra Common Mistakes

  1. Common Mistake 1

    Only multiplying the first term inside the bracket and forgetting to multiply the second term.
  2. Common Mistake 2

    Forgetting to include the variable when multiplying terms such as 3 × x.
  3. Common Mistake 3

    Making sign errors when expanding brackets with negative terms.


Algebra Worksheets - Free Worksheets Above

Year 9 expanding single brackets grid method worksheet preview

Expanding Single Brackets Grid Method

Year 9 expanding single brackets (a) worksheet preview

Expanding Single Brackets (A)

Year 9 expanding single brackets (b) worksheet preview

Expanding Single Brackets (B)