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Cornerstone · Grades 3–5 Keystones #1 22 March 2025 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 March 2025 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 4⁄8

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 46

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

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio Sharing in a ratio

    Divide 119 in the ratio 2:2:3

    Answer: 34, 34 and 51
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 14, 10

    Answer: 10.25

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