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Cornerstone · Grades 3–5 Keystones #291 18 October 2026 Skills week 7 of 7
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Five GCSE retrieval questions · 18 October 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing fractions

    Divide: 3⁄7 ÷ 2⁄3

    Answer: 9⁄14
  2. 2. Algebra Two-step inequalities

    Solve: 3x + 9 < 34

    Answer: x < 8.3
  3. 3. Geometry Area of a right-angled triangle

    Find the area of a right triangle with base 11cm and height 9cm

    Answer: 49.5cm²
  4. 4. Ratio Unitary method

    If 5 items cost £35.00, how much do 12 items cost?

    Answer: £84.00
  5. 5. Statistics Mode

    What are the modes of: 39, 18, 34, 39, 18, 21

    Answer: 18 and 39

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