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Cornerstone · Grades 3–5 Keystones #1 22 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x - 19 = 56

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

    Calculate the hypotenuse when a = 6cm and b = 7cm

    Answer: 9.22cm
  4. 4. Ratio Sharing in a ratio

    Share 18 in the ratio 2:1

    Answer: 12 and 6
  5. 5. Statistics Mean

    Calculate the mean of: 48, 27, 13, 44, 20, 50

    Answer: 33.7

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