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Cornerstone · Grades 3–5 Keystones #1 18 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 5x - 6 = 19

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 98 in the ratio 3:4

    Answer: 42 and 56
  5. 5. Statistics Mean

    Find the mean of: 9, 5, 4, 3

    Answer: 5.25

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