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Cornerstone · Grades 3–5 Keystones #1 23 November 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 November 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 3⁄5

    Answer: 23⁄30
  2. 2. Algebra Two-step equations

    Solve: 4x - 19 = 29

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 11cm

    Answer: 11.4cm
  4. 4. Ratio Sharing in a ratio

    Share 119 in the ratio 4:3

    Answer: 68 and 51
  5. 5. Statistics Mean

    Calculate the mean of: 10, 42, 28, 39, 40, 42, 5

    Answer: 29.4

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