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Cornerstone · Grades 3–5 Keystones #1 1 May 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 May 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x + 12 = 56

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 8cm

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 189 in the ratio 4:4:1

    Answer: 84, 84 and 21
  5. 5. Statistics Mean

    Find the mean of: 6, 2, 11

    Answer: 6.3333333333333

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