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Capstone · Grades 7–9 Keystones #287 14 October 2026 Skills week 7 of 7
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Five GCSE retrieval questions · 14 October 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying in standard form

    Multiply: 3.2 × 105 × 8 × 103

    Answer: 2.56 × 109
  2. 2. Algebra Inequalities with unknowns on both sides

    Solve: 8x + 7 ≤ x - 5

    Answer: x ≤ 1.7
  3. 3. Geometry Area using Pythagoras

    A right triangle has hypotenuse 10cm and one side 6cm. Find its area

    Answer: 24cm²
  4. 4. Ratio Ratio given the difference

    In ratio 2:1, the difference between shares is 144. What is the total?

    Answer: 432
  5. 5. Statistics Mode

    Find the mode of: 30, 49, 72, 61, 12

    Answer: No mode

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