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Cornerstone · Grades 3–5 Keystones #290 17 October 2026 Skills week 7 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 October 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing fractions

    Divide: 4⁄4 ÷ 1⁄5

    Answer: 5⁄1
  2. 2. Algebra Two-step inequalities

    Solve: 3x + 4 < 21

    Answer: x < 5.7
  3. 3. Geometry Area of a right-angled triangle

    Find the area of a right triangle with base 12cm and height 12cm

    Answer: 72cm²
  4. 4. Ratio Unitary method

    If 7 items cost £63.00, how much do 8 items cost?

    Answer: £72.00
  5. 5. Statistics Mode

    What are the modes of: 40, 40, 33, 24, 15, 15

    Answer: 15 and 40