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

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

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄7

    Answer: 13⁄14
  2. 2. Algebra Two-step equations

    Solve: 7x + 15 = 64

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 11cm

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 66 in the ratio 1:3:2

    Answer: 11, 33 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 6, 36, 47, 44, 21, 39, 33, 49

    Answer: 34.4

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