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Cornerstone · Grades 3–5 Keystones #1 2 September 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 September 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄10 + 3⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x - 17 = 13

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 7cm

    Answer: 7.62cm
  4. 4. Ratio Sharing in a ratio

    Share 51 in the ratio 2:1

    Answer: 34 and 17
  5. 5. Statistics Mean

    Find the mean of: 18, 10, 9, 14

    Answer: 12.75

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