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Cornerstone · Grades 3–5 Keystones #1 16 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 2⁄3

    Answer: 22⁄15
  2. 2. Algebra Two-step equations

    Solve: 5x + 7 = 27

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 39, 6, 44, 37, 15, 50

    Answer: 31.8

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