Algebra 11+ Maths Practice

Algebra introduces unknowns and rules, so 11+ questions often test whether a child can see the same structure through different numbers.

What children practise in Algebra

Algebra introduces unknowns and rules, so 11+ questions often test whether a child can see the same structure through different numbers.

Common question formats

  • Missing number equations
  • Simple substitution
  • Pattern and sequence rules

Common mistakes to avoid

  • Treating the letter as a label rather than an unknown
  • Changing only one side of an equation
  • Ignoring operation order

Worked examples

If x + 7 = 19, what is x?

Answer: 12

What comes next: 3, 6, 9, 12, ?

Answer: 15

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