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Cornerstone · Grades 3–5 Keystones #1 9 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 2⁄3

    Answer: 4⁄3
  2. 2. Algebra Two-step equations

    Solve: 4x + 9 = 25

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 40 in the ratio 3:2

    Answer: 24 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 45, 40, 38, 9, 46, 30, 7, 34

    Answer: 31.1

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