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Cornerstone · Grades 3–5 Keystones #1 19 April 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 2⁄5

    Answer: 23⁄20
  2. 2. Algebra Two-step equations

    Solve: 2x - 11 = 17

    Answer: x = 14
  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 60 in the ratio 1:3

    Answer: 15 and 45
  5. 5. Statistics Mean

    Calculate the mean of: 15, 11, 19, 31, 28, 23

    Answer: 21.2

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